Tesoro Stingray II Assembly instructions

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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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StingrayIIOPERATORINSTRUCTIONMANUAL
CONGRATULATIONS!
YournewTESOROMetalDetectorwasdesignedtoprovideyouwithmanyhappyhoursofenjoymentinthemost
rewardinghobbyIcanthinkof–treasurehunting.Aheadofyouliefascinatingandexcitingexperiencesasyoustepintothe
past–uncoveringartifactslostbypastgenerations.Iwishwecouldsharetheseexperienceswithyou,andwewishyouthe
bestofsuccess.
YourTESOROMetalDetectoriscapableofmeetingyourneedsinanyconceivabletreasurehuntingsituation.Aswith
anydetector,operatingskillandfamiliaritywiththisinstrumentareprobablythelimitingfactorsindetermininghowsuccessful
youwillbe.Werecommendthatyoureadthismanualandunderstandfullybeforeattemptingtousetheinstrumentinthe
field.Asyoubecomemorefamiliarwithyourdetectorthroughpractice,yourrateofsuccesswillincreasedramatically.
TheTESOROMetalDetectorisaprecisionelectronicinstrument,whichwilllastforyearsifproperlycaredfor.Treatit
rightanditwon'tletyoudown.
GoodHunting!JackGifford
GENERALDESCRIPTION
TheStingrayIIisawaterproofVLF/TR/VLFDiscriminator,whichprovidesthreebasicoperatingmodes.Itcanbeusedas
anALLMETALdetector,asaTRdiscriminator,orasaMotionbaseddiscriminator.ItiscapableofprovidingMineralFree
operationinanyenvironment,ifadjustedcorrectly.
TheStingrayIIcanbeusedonland,inthesurf,orunderwatertodepthsof200feet.Itisperhapsthemostversatileofall
waterproofmetaldetector'syetmade.
Thedetectorissuppliedwithinstandardlandbasedmetaldetectorform,butisequippedwithabeltbracketforbody
mounting.Further,theStingrayIIcanbecompressedtouseablelengthsforthedivingTH'er.
TheStingrayIIisequippedwithawaterproofcoilconnectorsothatoptionalcoilscanbeutilizedonthedetector.
Aswithanydetector,thefamiliarityoftheuserwithhisinstrumentwillhaveagreateffectonhowsuccessfulhewillbe.
Werecommendthatyoureadandunderstandthismanualfullybeforeattemptingtousetheinstrumentinthefield.
ASSEMBLY
TheStingrayIIcanbeassembledintoseveralconfiguration,butthemostgeneralformsareeitherthepolemountorthe
bodymountconfigurations.Itisrelativelyeasytoconvertthedetectorfromoneformtotheother.Theinstallationofthelower
poletothesearchcoilisthesameregardlessofwhichconfigurationisused.
1. Insertthepoletipbetweenthemountingearsofthesearchcoil,afterremovingthescrewandthumbnut.Alignthe
holesinthepoletipandthoseinthemountingears.Besurethatthefrictionwashersareinplace.
NOTE:Itwillbemucheasiertodothisifyoumoistenthefrictionwashersfirst.
2. Insertthecoilmountingscrewthroughthecoilandpoletip.Installthethumbnutonthescrewandtightenbyhand.
3. Depressthetwospringbuttonsontheupperendofthelowerstem,andslideitintothemiddlestem.Pushthelower
stemupsothatthebuttonsclickintothethirdsetofholesfromtheendofthemiddlestem.
4. Thesmallendofthemiddlepoleistheninsertedintotheupperpoleandthepolelockistwistedtoprovideasnugfit.
NOTE:TheStingrayIIcanbesetupasadiver'spoleconfigurationbysimplyputtingthelowerpoledirectly
intotheupperpole.
5. Windthesearchcoilcablearoundthepole.
ThenextstepinsettingupyourStingrayIIwillbedecidingwhichdirectionyourfaceplatewillbe.
Pointingthefaceplateawayfromthecoilgivesyoulesschancesofhavingtheknobsturnwhenyousetthedetector
down.
Pointingthefaceplatetowardthecoilmakesitlesslikelythattheheadphonecablewillgetinyourway.Experimentwith
havingyourdetectormountedbothwaystofindtheconfigurationthatbestsuitsyourhuntingstyle.
Placingorremovingthedetectoronthepoleisaneasyprocess.Simplydepressonesetofspringclipsatatimeand
slidethedetectoronthepole.
Installthecoilconnectorintoitsreceptacleonthebackofthecontrolhousingandtightenitfingertight.
NOTE:Donotuseplierstotightenthecoilconnector.
CONVERSION
Obviously,convertingtheunitfrombodytopolemountorviceversa,issimplyputtingthecontrolhousingbackonthe
pole,orremovingitfromthepole.Besuretokeepthesearchcoilcablewoundtightenougharoundthepolethatitdoesn'tflap
rightoversearchcoil.TheStingrayIIispowerfulenoughtoseethefinewiresmoving,andcangiveyoufalsesignalsifthe
cableistoolooseenoughtofloparound.(Note:Usethetwovelcrostrapstoholdthecabletightagainstthepole.)
SPECIFICATIONS
TESOROElectronics,Inc.,reservestherighttomodifyorimprovethedesignwithoutfurthernotice.
CONTROLS
TheStingrayIIhasonlyfourcontrolsonitsfrontpanelbutthreeadditionalcontrolsareontheinsideofthecontrol
housingandcanbeadjustedbyopeningthehousing.SincetheThresholdAdjust,VolumeandSensitivityforMotion
discriminateareseldomusedcontrols,theyareplacedontheinsideofthehousingtominimizethechanceofleaking.
1. ON/OFFTuneSpeed,BatteryCheck.ThepowertotheStingrayIIiscontrolledbythisswitch.Abatterytestis
accomplishedeachtimetheswitchisturnedonandtheswitchselectsthespeedofthetuningfornonmotionmodes.
Thecounterclockwisepositionturnsoffthedetector.Whentheswitchisturnedclockwisetothefastspeedposition,the
automaticbatterytestsequenceistriggered.Theaudiosoundwillbeveryloudforroughly45secondswhenfresh
batteriesareused.Asthebatterieslosepower,thesoundwillbelessintenseandwilldieawayfasteruntilthereisno
audioatallorjustashortchirp.Thislackofaudiosoundindicatesitistimeforfreshbatteries.Thenonmotionmodes
(TRDISCandALLMETAL)areretunedbacktothresholdbyplacingthisswitchintheFAST,MED,orSLOWposition.
Tuningspeedshouldbeselectedtosuittheparticularhuntingmodeandmineralconditions.
2. ModeControl.ThisswitchselectsthedesiredoperatingmodeoftheStingrayII.TRDISCisgenerallymoresuitable
forsearchingsaltwaterbeaches,andthedisclevelcontrolisusedtoadjustthedetector'sresponsetothewetsalt
beach,sincetheTRmodeisnotmineralfree.MOTDISCisthemineralfreemotiondiscriminatemode,andthedisclevel
controlcanbeusedtoadjustthedetectortoeliminatetrashitemsasdesired.ALLMETALisanonmotionmode,and
theGNDadjustcontrolcanbeusedtoadjustthedetector’sresponsetogroundmineralization.
3. DiscLevelControl.Thiscontrolisusedtoadjustthedetector'sresponsetounwantedtrashitemswhenthe
detectorisusedinmotiondiscriminateandtoadjustthedetector’sresponsetowetsaltbeacheswhenitisusedinthe
TRdiscriminatemode.Wetsaltbeachescanusuallybetunedneutralsomewherearound2to4onthedial.
4. GNDAdjust.Thiscontrolisusedtosetthedesiredresponsetogroundmineralswhenthedetectorisusedinthe
ALLMETALmode.Itdoesn'thaveenoughrangetocompensateforwetsaltbeaches,soisnotusablewhensearching
them.Thedetector'sresponsetogroundmineralsshouldbesetsothatasthesearchcoilapproachesnormalground,the
detector’sthresholdgoesslightlylouder.Thiswillkeepthedetectorfromreadingholesinthegroundwhenitisusedin
themotiondiscriminatemode.
NOTE:Thefollowingthreecontrolsaremountedinsidethecontrolhousing,sincetheyareseldomused
controlsanddonotneedconstantadjustment.
5. ThresholdAdjust.Thiscontrolisusedtoadjustthethreshold(thebeginningofsound)forthetwononmotion
modes.Thresholdshouldbeadjustedwiththecoilintheair,thetunespeedswitchonfast,andthemodeswitchinTR
discorALLMETALposition.Adjustsosoundisverylowjustbarelyaudible.
6. Volume.Thiscontroladjuststhevolumeoftheloudestsoundtobecomfortabletotheuser.Iftheloudestsounds
aretooloud,youmaybecomewearyofusingthedetector,andiftheyarenotloudenough,youmaymissthedeepest
targets.
7. MotionDISCSensitivity.Thiscontrolshouldbesetashighaspossible(clockwisedirection)whilestillallowing
quietoperation.Whenitissettoohigh,falsesignalsmaybecomepredominant,whichmayreduceyourabilityomake
outthefaintdeeptargetsignals.
TUNINGTHESTRINGRAYII
TheStingrayII,likeotherhighpowermetaldetectors,willgivemuchbetterperformanceifitisproperlytuned.Toachieve
maximumperformancefromyourStingrayII,besurethatyouunderstandthefollowingsectionsofthemanualandthatyou
useitinthebestmodeforthesiteyouarehunting.
1.TuningInTheAllMetalMode
TheGroundAdjustcontrolislocatedonthefrontpanelandisnotdesignedtobeusedasthegroundadjustcontrolwould
normallybeusedonalandbasedmetaldetector.Itshouldbesettthebestsettingfortheareasthatyouworkandthenleft
alone.
TheGroundAdjustcontrolshouldbesetsothatthemostnegativemineralbackgroundsthatyouwillbedetectingin
responsewithaslightpositiveincreaseinvolumeasthesearchcoilisloweredtotheground.Thiswillyieldthebestresults
whenthedetectorisusedinthemotiondiscriminatemodebykeepingthedetectorfromrespondingtonegativemineralsor
fromdetectingaholeintheground.
TheGroundAdjustcontroldoesn'thaveenoughrangetoneutralizesaltwaterbeaches.Saltwaterbeachesarealways
verypositive,sotheTRdiscriminatemodeshouldbeusedwiththeDiscLevelcontrolbeingsettoneutralizetheconductive
natureofthebeach.
1. PuttheOn/OffcontroltofastandtheModeselectswitchtoALLMETAL.Holdthesearchcoilabouttwofeetabove
thegroundandrapidlylowerthesearchcoiltoabouttwoinchesabovetheground.
2. IfthereisnochangeintheThresholdsound,oronlyaslightpositiveincrease,thedetectorisproperlytuned.Ifthe
sounddecreases,thegroundadjustshouldbeturnedslightlyclockwise(inthedirectionlabeledMax).Ifthesound
increasesdramatically,turnthegroundadjustslightlycounterclockwise.
3. Repeattheabovestepuntilthethresholddoesn'tchangeoruntilthereisaslightpositiveincreaseinthethreshold
sound.
2.TuningInMotionDiscriminateMode
UsingthedetectorinMotiondiscriminateissimplyamatterofsettingtheDiscLevelcontroltothedesiredposition.The
detectorshouldnotbeaffectedbymineralization,unlessitisquitesevere.Aslightlyimprovementinresponsemaybenoted
byreducingtheSensitivityControlontheinsideofthehousing.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
3.TuningInTRDiscriminateMode
TheTRdiscriminatemodewillprobablybeunusableinvirtuallyalllandlocationsduetomineralizationlevels.Itmaybe
themostuseablemodeoncertainsaltwaterbeaches,however,butonlyifthediscriminatelevelcontrolissettoneutralize
theeffectsofthecombinedmineralizationandconductivesaltwater.ThisobviouslymeansyoucannotusetheDiscLevel
controltoeliminateanytrashitems,sinceyoumustusedittoeliminatemineraleffects.
ItwillprobablybebesttotryusingtheMotiondiscriminatemodeonsaltwaterbeachessinceyoucanusetheentire
rangeoftheDiscLevelcontroltoeliminatesomeofthemoreprevalenttrash.
1. TurntheON/OFFcontroltothefastpositionandtheDiscriminateLevelcontroltoaboutmidrange.WiththeMode
switchintheTRDiscposition,holdthesearchcoilabouttwoinchesabovetheground.
2. Rapidlyraisethecoilabouttwoorthreeinches.Ifraisingthesearchcoilslightlymakesthethresholdsoundincrease
tomaximum,themineralizationlevelwillprobablymaketheTRdiscriminatemodeverydifficulttouse.Youmustbeable
tosweepthecoilfromsidetosideandstillmaintainthethresholdsound.AttemptingtooperateinTRdiscriminatein
heavilymineralizedgroundwillalmostalwayscausealargedecreaseindepth.
3. Onasaltwaterbeach,thediscriminatelevelcontrolcanbeusedtoessentiallygroundcompensatethedetectorifit
usedintheTRdiscriminatemode.ItwillbebesttoadjusttheDiscLevelcontrolforaslightincreaseinsoundasthe
searchcoilapproachesthewetsaltbeach.
SELECTINGTHEPROPEROPERATINGMODE
TheTRdiscriminatemodewillprobablybeunusableinmostlandareasduetothemineralizationlevelsencountered.
However,theTRdiscriminatemodecanbequitepossiblythebestchoicetouseonasaltwaterbeachbecausetheDisc
Levelcontrolcanbeusedtoneutralizetheconductivewetsaltsands.AlsoiftheMotiondiscriminatemodegivesalotoffalse
signalsonsuchabeach,theTRprobablycanbeadjustedtooperatequitewellwithoutallofthefalsesignals.
Inlandhunting,itwillbebesttouseeithertheALLMETALmodeortheMotiondiscriminatemode.Eitherofthese
modeswillbemineralfreeifthedetectorisadjustedproperly.Itwillbebesttoadjustthegroundadjustcontrolforaslight
positiveincreaseasthesearchcoilapproachestheground.ThiswillkeeptheMotiondiscriminatemodefromreadingholesin
thegroundasyourecheckatargetyouhavestartedtorecover.
NOTE:BeverycarefulnottogetanysandordirtparticlesonthefrontedgeofthehousingorontotheOring
inthepanel.Anyparticlesinthissealcancausethedetectortoleakwhenitissubmerged.Whenclosingthe
housing,operatebothdrawboltsatthesametime,ratherthanclampingonesideandthentheother.Fromtime
totime,youshouldapplyabitofOringgreasetothepanelOringseal.
ADJUSTMENT
Thesearchcoilangleandstemlengthshouldbeadjustedsothattheunitdoesnotbecomeuncomfortableortiringtohold
afterlongperiodsofuse.Thedetectorshouldrestinyourhandwitharmrelaxedallowingittoswingbackandforthwithout
havingtoliftwiththeelboworshoulder,whilekeepingthesearchcoilascloseaspossibletothegroundwithouttouching.The
polelengthisadjustedbydepressingthespringbuttonsandextendingorshorteningthelowerstem,tilltheyclickintothe
holesthatgiveyouthemostcomfortablesetting.Thesearchcoilshouldbeaboutoneinchabovethegroundwhilestanding
erect.Adjusttheangleofthesearchcoil,sothatthecoilisparalleltotheground.Tightenthesearchcoilthumbnutbyhandso
thatthesearchcoilwillmaintainthissetting.
FIELDUSE
Thedetectorshouldbeheldinapositionthatiscomfortableforyou.Swingthedetectorfromsidetosideinaboutathree
footarc,overlappingsucceedingstrokeswell.Thismotioniscalleda“sweep.”TheStingrayIIwasdesignedtogetmaximum
depthwithoutthefranticpacerequiredofearliermotiondetectors,sogoatapacethatiscomfortableforyou.Infact,tryingto
hunttoofastinDiscriminatemayevencausealossofdepthinheavilymineralizedlocations.
Itwouldbehelpfultoburysomecoinsandtrashmetaljunkitemsinanareathatyouknowisclearofothermetal
objects,andthentrytheunitinitsvariousmodes.ChecktheareainAllMetalModefirsttobesureitsclearoftrashthen
burythetargetsatleastafootapart,andfrom2to6inchesdeeptostart.Makeamapofthetestbedtobesureyouknow
whateachtargetisandhowdeepitis.Practiceonthesetargetstofamiliarizeyourselfwithyourdetector’stargetresponse.
ThiswillalsohelpyoulearnthepropersweeprateforDISCoperation.
InALLMETALmodeoperation,keepthedetectortunedsothatitisjustlightlybuzzing.Thisiseasytodobecausethe
groundmineralsdonotaffecttheALLMETALmodeifproperlyadjusted.Regardlessofwhichmodeyouareusing,trytokeep
yoursearchcoilheightconstantandclosetotheground.Mostpeopletendtoraisethecoilattheendofasweep,muchlikea
pendulum,especiallyiftheyhurry.Trytoavoidthis,asanyincreaseinheightwillcauseacorrespondinglossofdepth.
Inareaswithwellkeptlawns,theeasiestwaytomaintainaconstantsearchcoilheightistoallowthecoiltorestonthe
grassasyousweepfromsidetoside.Inroughandrockyareasitisbestnotto“scrub”thecoilontheground,astherocks
willactlikeabrasives,andwearawaythecoilbottom(anoptionalcoilscuffcoverwillprotectagainstthis.)Sweepthecoilas
closetothegroundaspossiblewithouttouching.Hittingthegroundorrocksmaycauseafalsesignalmuchlikeadesired
targetwould.Sweepingthecoiltoohighabovethegroundresultsinalossofdepth.
WhenoperatingintheMotionDiscriminateMode,some“falsesignals”maybecausedbyheavyconcentrationsoftrash
metalobjects,byverylargetrashitems,orbyelectricalinterference.Thesesignalswillsounddifferentthangoodtarget
signalsbecausetheyaregenerallyshort,choppysounds.Attheendofyoursweep,asyouthereversethecoildirection,the
detectorismostsusceptibletotrashinducednoise.Therearetwowaystotellwhetherthesesoundsaregooddeepsignals
ortrash“noise.”Thefirstisbyrepeatability.Trashinducednoiseswillnotberegularasyousweepthecoiloverthesuspected
targetseveraltimes,whereasagoodtargetresponsewillberepeatable.ThesecondmethodistoswitchtoAllMetalMode
andcheckthetargetresponsesound.Iftheresponseisweak,itmaywellbeadeep,goodtarget;butiftheresponseisvery
strong,itisprobablytrash.Notethatacoinclosetothesurfacecangiveadoublebeepsound,butitisregularand
repeatable.Raisingthecoilaninchortwowillrestorethesinglebeeponsurfacetargets.
Ifthereisanydoubtwhetheratargetisgoodornot,DIGIT.Forthissamereason,intheMotionDiscriminateMode,itis
bestnottouseahigherDISCLEVELsettingthannecessary.NickelsandmostsmallerringsarerejectedwhentheDISC
LEVELissettorejectpulltabsonanymetaldetectorthatisaTRDiscriminatorliketheStingrayII.Ifyoudon’tdiganyjunk
atall,youaresurelypassingupalotofgoodfindsaswell.SettheDISCLEVELonlyhighenoughtosuittheconditions
whereyouaresearching.
PINPOINTING
ThesweepspeedofthedetectorislowenoughtoallowpinpointingintheMotionDiscriminateMode,butwillrequirea
littlemorepractice.Movethecoilslowlyfromsidetosideandthenfromfronttobackoverthetarget.Raisingthecoilslightly
andslowingthesweepspeedwillnarrowdownthedetectionareaenoughthatit'seasytotellwherethecoilcenterisatthe
instantofthesound.
Anothereasymethodistosweepthecoilfromsidetosideacrossthetargetinveryshortsweeps,asyouslowlymove
forwardandbackwardacrossthetarget.Slowdownthesweeprateandshortenthesweepsuntilyoujustbarelygeta
responseatonespot.Thetargetwillbedirectlybelowthecoilcenteratthisresponsetime.
TheeasiestwaytopinpointformostpeoplewillbetoswitchtotheAllMetal,sincenomotionisrequired.Topinpointa
targetthatdoesn'tsaturatetheaudio,justmovethecoilforwardandback,andsidetosideuntilyougetthestrongestsound.
Thetargetwillbedirectlybelowthecoilcenter.Iftheaudiosaturatesoveralargearea,holdthecoiloverthetarget
momentarilytodetunethedetector.Thiswillnarrowitsfieldofresponsetoallowyoutoonceagainseektheareaofstrongest
response.
BATTERYINSTALLATION
TheStingrayIIisequippedwithanautomaticbatterytestcircuitsothatyoucanalwaysbesureyouaregettingtop
performancefromit.Thebatteriesshouldbecheckedafterthedetectorhasbeenonforabout10minutes,andthen
periodicallyasyouareusingitforlongperiods.Totest,followtheproceduredescribedinthecontrolsectionofthismanual.
Toinstallorreplacethebatteries,makesurethedetectorhousingisdrythenreleasethetwodrawboltssecuringthe
controlpaneltothehousing.Gentlypullthecontrolpanelfree,beingcarefulnottotwistorstraintheribboncableconnecting
thecontrolpaneltotheprintedcircuitboard.Removethefoaminsertandliftoutthebatteryholder.Removethebattery
terminalsnapfromthebatteryholder.TheStingrayIItakes6AAalkalinebatteries.Makesurethattheterminalpolaritysnaps
fittightlytothepolaritysnapsofthebatteryholder.Alooseconnectionmaycausethedetectortofailtorespondortoact
erraticallywhenoperating.Alsomakecertainthatyoufollowthepolarityindicatorsonboththebatteryholderaswellasthe
batteriesthemselves.Placetheterminalendagainstthefoaminsertwheninsertingthebatteryholderbackintothebattery
compartment.
IMPORTANTNOTE:Alwaysmakesuretheinstrumentisdrybeforeopening.Water,ifallowedtomakecontact
withthecircuitboard,maydamageit.AlwaysmakesuretheOringiscleanandfreeofdirtorsand.Itis
recommendyouwipetheOringwithadryclothandlookfordamageandapplyanewcoatofdiver'ssilicone
greasebeforereplacing.FailuretomaintaintheOringwillresultinextensivedamageandwillnotbecovered
underwarranty.
DETECTORPROTECTIONCHECKLIST
Congratulations,youhavejustpurchasedanewmetaldetector,andwewishtothankyouforchoosingTesoro.
Somanypeoplearedisappointedwhentheirnew"stateoftheart"detectorbecauselessandlessexcitingtouse,and
doesn'tseemtogoasdeepanymore.Thereissomethingthatyoucandotokeepyournewdetectorworkingasgoodas
whenitwasnew.
Themostimportantthingistosimplytorememberthatyourdetectorisanelectronicinstrument,andtotreatitassuch.
Youwouldn'texpectyourTVsettooperateproperlyifyoustoreditinthetrunkofyourcar,wouldyou?
Wehavegeneratedthefollowinglisttohelpyoutakecareofyourdetectorandtohelpensurethatyoudonotvoidits
warranty.Ifyouwillfollowitsguidelines,youwillfindyourdetectorwillnotletyoudown.
lOperateyourdetectorexactlyasrecommendedinthisinstructionmanual.
lDonotattempttomodifyorrepairthedetector'selectronics;caution:openingofcontrolhousingmayvoidyour
warranty.
lCableishardwiredintosearchcoil,donotattemptremovalofthespringretaineronthesearchcoilhousing.
lUseonlyhighqualitycarbonzinc,alkaline,ornicadbatteries.Neversubstituteadifferentvoltage.Brandshouldnot
bemixed.Donotattempttomodifythepowersupplysystem.
lNeverspraylubricantssuchasWD40oranytypeofcleaners,sealantsorotherchemicalpreparationonorintothe
detector.
lAvoidbangingthesearchcoilagainstrocksorfoundationwalls.
lRemoveandcleanoutscuffcoversperiodicallytoavoidbuildupofmineralizeddirtparticleswhichwillaffect
performance.
lAftereachuse,cleanthedetectorwithasoftclothtoremovedust,moisture,andothercontaminants.
lDonottransportorstoreyourdetectorinthetrunkofyourcar.
lIfyourdetectorhasaprotectivespringatthecoilcableconnector,besurethatthespringdoesnotworkitsway
insidetheplug,causingashort.(OnTesorodetectors,thespringshouldextendapproximately5/8thfromthebaseofthe
connector.)
lKeepcablesproperlywoundaroundthepolestemsandprotectthemduringuse.Floppy,pinched,orcablesthat
becomesnaggedduringusemayshort,causingerraticnoisesorunnecessaryreplacementofthesearchcoil.
lProtectyourdetectorfromdust,moisture,andextremetemperaturesduringstorage.Avoidstoringitinplacessuch
asattics,basements,orgarages.Whenshipping,usetheoriginalfactorycartonorsimilarheavydutycontainer;aone
inchminimumclearanceofpaddingaroundthedetectormustbeprovidedwhenshipping.
lTreatyourdetectorasyouwouldanysensitiveelectronicinstrument.Thoughruggedlyconstructedanddesignedto
withstandthedemandsofnormaltreasurehuntingapplications,itisnotintendedtobeimproperlyoperatedorabused.
RECOMMENDEDRECOVERYMETHODS
Alwaysobtainpermissionfromthepersoninchargebeforehuntingonprivateproperty,schoolyards,parks,churches,or
stateparks.Evenwhenrelichuntinginthewoods,NEERLEAVEAHOLE!,ordamageanythingontheproperty.
PROTECTYOURHOBBYFILLALLHOLES
OPTIONALSEARCHCOILS
Selectingtherightsearchcoilforthetypeofdetectingyouaredoingwilladdgreatlytoyoursuccess.TheStingrayIIis
equippedwithan8"opencenterconcentricstylecoil.ToincreasetheflexibilityofyourStingrayII,Tesorohasdesigneditso
thatthesearchcoilisreplaceablebytheuser.Optionalsearchcoilsof7"and101/2"areavailablethroughyourdealer.
The8"unitfurnishedasstandardisprobablythebestoverallcoilsizeforusebymostpeople,sinceitoffersthebest
compromiseasfarasdepthvs.targetsizeareconcerned.Forpeoplewhoneedtofindtargetslargerthancoins,the101/2"
coilwillgreatlyincreasedetectiondepth.Forfindingsmallpieces,suchassomejewelry,the7"coilwillincreasethe
detector’sresponsetosmallertargets.
Underthecopyrightlawsthisdocumentationmaynotbecopied,photocopied,reproduced,translatedorreducedtoanyelectronicor
machinereadableform,inwholeorinpart,withoutthepriorwrittenconsentofTesoroElectronicsIncorporated,exceptfortheprivate
useofaStingrayIIowneroroperator,orinamannerotherwisedescribedinthisdocumentation.
©19951996TesoroElectronicsIncorporated.Allrightsreserved.PrintedintheUnitedStates.
WARRANTYSERVICE
YourTesorometaldetectoriscoveredbyaLimitedLifetimeWarranty,the
termsofwhicharelistedbelow.Ifyourmetaldetectorshouldrequireservice,you
mayreturnittotheTesorofactoryattheaddressbelow.
Ifyouhaveanyquestions,don'thesitatetocontactthefactory.
WATERPROOFMETALDETECTORWARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayhaveotherrights
whichvaryfromstatetostate.
Thisinstrumentiswarrantedtobefreeofdefectsinmaterialandworkmanship
aslongasitisownedbytheoriginalconsumerpurchaser.Thiswarrantyisnot
transferable,andisvalidonlyifthewarrantyregistrationcardhasbeencompleted
andmailedwithin10daysofpurchase.
Duringthefirsttwoyears,TESOROwill,atitsoption,repairorreplaceany
instrumentcoveredbythiswarranty,withoutcharge,exceptfortransportation
charges,atitsfactoryinPrescott,Arizona,oratoneofitsauthorizedrepair
centers.Aftertwoyearsfromdateofpurchase,TESOROwillreplacedefective
partsatnochargeexceptanominallaborchangeandtransportationcharges.
Thiswarrantyexcludesbatteries,damagecausedbyleakybatteries,cable
breakageduetoflexingonbodymountunits,andwearofthesearchcoilhousing.
Alsoexcludedareinstrumentswhichhavebeenabused,altered,orrepairedbyan
unauthorizedparty.
Ifwarrantserviceshouldbenecessary,contactthefactoryfornearestrepair
center.
TesoroElectronics,Inc.715WhiteSparRoadPrescott,AZ,USA8630319287712646
OperatingFrequency 12kHz
SearchcoilType Concentric
SearchcoilSize 8"Diameter
CableLength Approx.3’
AudioFrequency Approx.750Hz
AudioOutput WaterproofHeadphones
Weight(mayvaryslightly) 33/4lbs.
BatteryRequirement 9voltDC
6AAalkalinepenlight
BatteryLife(typical) 15to30hours
OptimumTemperatureRange 30°to100°F
OperatingModes
AllMetal,nomotion
Discriminate,motion
Discriminate,nomotion
MaximumDepthRating 200ft.
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