Ademco 4278ex-sn User manual

N4756–8V1 11/95

No. 4278EX-SN

PASSIVE INFRARED MOTION DETECTOR

INSTALLATION INSTRUCTIONS

GENERAL INFORMATION

The No. 4278EX-SN PIR is a passive infrared motion detector for use with control

panels that support serial number polling loop devices only. It is not for use with pan-

els that support only DIP switch addressing.

The detector provides 12 zones of wide-angle coverage with a range of up to 40 feet

(12.2m) with the supplied mirror, or long range/curtain coverage (with optional long

range mirror) with a range of up to 80 feet (24.4m).

COVERAGE CONSIDERATIONS AND TYPICAL LAYOUTS

The range will depend upon the mirror system in use. Protective patterns are shown in

Diagrams 1 and 2 for a normal mounting height of 7ft (2.1m). The unit may be mount-

ed higher for increased range but mounting above 8.5 ft (2.6m) is not recom-

mended.

ÒDead ZoneÓ Caution: Note in Diagram 1 that a Òdead zoneÓ is indicated, within which

a person could be moving and not be detected by any of the unitÕs protective zones.

Other dead zones may occur between the detector and the downward fields of view as

the unitÕs mounting height is increased.

Selecting a Mounting Location

The detector responds to changes in energy which occur when an intruder moves into

or out of a protective zone. Best coverage will be obtained if the mounting site is select-

ed such that the likely direction of intruder motion is ACROSS the pattern.

Passive I.R. units are remarkably resistant to false alarm hazards, but the following rec-

ommendations should be observed:

¥ Install the detector at a height of approximately 7 feet (2.1m) from floor. Do not mount

on an unstable surface

IMPORTANT! Avoid running alarm wiring close to heavy-duty electrical power

cables

¥ Do not install where the detector is exposed to direct sunlight or directly above strong

sources of heat.

¥ Avoid locating a unit in areas which contain objects likely to produce a rapid change

in temperature, such as central heating, radiators or ducts (or heaters of any kind),

air conditioners, open flame, etc.

¥ Make sure the detection area does not have obstructions (curtains, screens, large

pieces of furniture, plants, etc.) which may block the pattern of coverage.

INSTALLATION

A. Changing from Wide Angle to Long Range coverage:

1. Remove front cover by inserting a screwdriver blade in the groove between cover

and base at one of the locations shown in Diag. 3, rotating the blade to override

snap fit, and then lifting cover off.

2. Spread either or both plastic prongs holding the wide angle [40 ft (12.2m)] mirror

and remove the mirror (Diag. 4).

3. Insert one side of the long range [80 ft (24.4m)] mirror under a prong and snap the

other side under the other prong. Make sure that the mirror sides are squarely in

their corner rests and are held securely under the prongs.

NOTE: Mirror surface should be free of dirt, foreign matter and finger

prints.

Use a

clean dry soft cloth to wipe mirror surfaces, if required.

B. Mounting with Wall Plate

1. Remove the front cover as shown in Diagram 3.

2. Mount the wall plate to a firm vertical surface (flat on wall or in a corner). See

Diagram 5 and Detail A.

3. Feed wiring through tow access hole of detector but do not connect to terminal

block yet. See Diagram 4, Note A.

4. Attach unit to wall plate by engaging all four hooks on the plate into slots on the

rear of the base and by pressing downward (see Diagram 5).

NOTE: The PIR is locked to the wall plate by a spring tab that engages a small

opening in the housing base (see Diag. 5). The PIR can only be removed by

cover removal, depression of the tab from the inside with a small-blade screw

driver and then sliding the PIR upward (see Diag. 4).

C. Mounting without Wall Plate

Mount the PIR on a flat wall or in a corner, without a wall plate. Two pairs of knock-

out areas are provided on the housing base, just above the mirror, where mounting

screws can penetrate the plastic. These are accessible by removing the circuit

board (spread the circuit board mounting tabs shown in Diagrams 4 and 5).

Do not open the knockout areas unless they will be used for mounting, with the

heads of the mounting screws completely covering the openings.

For flat wall mounting, a wiring passage is provided at the rear of the housing base

to enable circuit wires to be routed into the PIRÕs wire entry area. See Diagram 4,

Note A and Diagram 5, Detail A.

After the base is mounted, the circuit board should be carefully replaced. Align the

notches at the left and right edges of the circuit board with the baseÕs mounting

tabs. In addition, the board should rest securely on the two support posts, and the

wiring entry notch at the boardÕs upper edge should rest on the long wall of the

wiring entry passage. See Diagrams 4 and 5.

Diagram 1: WIDE ANGLE PROTECTION PATTERN

Diagram 2: LONG RANGE/CURTAIN MIRROR COVERAG

(With Optional Long Range Mirror)

LIFT 

COVER

1INSERT SCREWDRIVER 

AT LOCATION a, b or c 

AND TWIST



Diagram 3: COVER REMOVAL

TOP VIEW

SIDE VIEW

DETECTOR

DOWNWARD

INTERMEDIATE

MAIN

APPROX. 4 FT.

(1.2m) DEAD ZONE

TOP VIEW

SIDE VIEW

10'

(3.0m)

40'

(12.2m)

80'

(24.4m)

7'6"

(2.3m)

2.3'

(0.7m)

80'

(24.4m)

(2.1m)

INSERT SMALL SCREWDRIVER 

TO RELEASE WALL PLATE

INTERLOCKING SPRING TAB

WIRING ENTRY 

NOTCH (IN BOARD)

AND PASSAGE 

(IN BASE)



PC BOARD 

MOUNTING 

TABS (2)



PC BOARD 

SUPPORT 

POSTS (2)



PLASTIC PRONG (2)

(HOLD MIRROR 

IN PLACE)

HORIZONTAL 

ADJUSTABLE 

MIRROR 

CARRIER

MIRROR WIDE ANGLE

MIRROR 

CORNER 

RESTS (4)



TERMINAL

BLOCK

LED







Diagram 4: INTERIOR OF DETECTOR

NOTES:

A. Thin exterior wall in wiring entry

area can be cut/broken away for

surface wiring.

B. Hole along upper edge of housing

permits use of cover securing

screw (required for VdS/SKAFOR

compliance) and holes within

wiring entry area permit addition

of wiring clamp (required by VdS).

Keep housing screw hole covered

(with label supplied or tape) if

screw not used.

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SERIAL NUMBER

Previous Menu

1234

POLLING

LOOP

RIGHT

LOOP

EXTERNAL

SENSOR

NORMAL

DISABLE

INSTANT

WALK TEST

SWITCH #1 = MODE SELECT SWITCH

SWITCH #2 = WALK TEST SWITCH

TAMPER SWITCH

Removal of the cover causes a tamper switch to open. The panel is

automatically notified via the polling loop when this event occurs.

Diagram 7: WIRING CONNECTIONS

SIGNAL PROCESSING

With the Mode Select Switch in the NORMAL position (see Diag. 7), the

signal processing circuitry of the PIR provides maximum immunity against

unwanted alarms caused by environmental disturbances, external electrical

sources, heaters, etc. The detector signal an alarm within 3 to 4 steps, since

the processing logic requires more complex motion than just a momentary

event. When the detector verifies an intrusion, it signals the control and lights

the LED (unless disabled).

With the Mode Select Switch in the INSTANT response position, the delay

involved in signal processing is eliminated. An instant alarm response (and

lighting of the LED unless disabled) is provided when an intruder enters any

single protective zone. Use instant response mode when the long range mirror

is installed, or where the detector is used to protect narrow corridors, or where

single protective zones are directed through doorways or room openings

SERIAL No. ID

This unit does not utilize DIP switches to set its zone number (ID).

Each unit has a unique factory-assigned serial number which must be

ÒlearnedÓ by the control panel during the zone programming

procedure. Therefore, this PIR can be used only with a control that supports

serial number devices.

Note that this PIRÕs unique factory-assigned serial number can be found on the

bar code label on the left-hand corner of the PC board (see Fig. 4).

The PIRÕs serial number can be entered by one of the following methods:

1. Downloading (Zone Definition screen of V-Link software). Recommended for

large installations and installations where foot traffic cannot be

controlled.

2. Entered in manually at the "learn" prompt during manual zone programming

(see Important note below).

3. "Learned" by faulting the detector twice while at the "learn" prompt during

manual zone programming.

3. When the detector is mounted in an inverted position, those portions of the

detector mirror which normally provide downward beams of protection will

now provide beams that point upward. This will apply to both mirrors (long

range and wide angle). If possible, install the detector so that these now

upward-pointing beams are not directed at ceiling areas that include heat-

ing or air conditioning ducts and vents or light fixtures. If these PIR sources

cannot be avoided, the upward-pointing segment of the mirror should be

masked to avoid the possibility of false alarms. See the section on ÒMirror

MaskingÓ

G. Mirror Masking

The masking strips that have been supplied and are designed for application

to one or more mirror segments to produce a protection pattern that suits the

particular requirements of the protected area. Simply peel off the appropriate

pressure-sensitive adhesive strip(s) and apply over the desired mirror seg-

ment(s). Individual masking strips have been provided for each of the mirror

segments on the wide-angle mirror. Two strips are provided for masking multi-

ple segments of the long range (curtain) mirror. Each mirror segment that is

masked results in the elimination of one zone of protection from the coverage

pattern. By masking appropriate segments of a mirror, you can adjust the cov-

erage to suit the area to be protected, or to eliminate coverage from areas

where you anticipate environmental disturbances that might reduce the PIRÕs

stability (a heater or other heat-producing object, for example).

WIRING CONNECTIONS

Bring all wires in through the PIRÕs wiring entry near the terminal block and

make connections as indicated in Diagram 7.

1. Polling loop (+) and (–) terminals: Connect these terminals to the system

polling loop. Observe polarity.

2. External sensor terminals: Connect these terminals in a series loop to

external N.C. sensors that can be assigned to any zone response provided

by the system, independent of the zone response used by the PIR. For UL

installations, wire run must be 3 ft. or less..

Refer to the Installation Instructions for the control panel regard-

ing the polling loop, ID numbers, and enabling of tamper detec-

tion (a pre-connected tamper switch is activated by removal of

the unitÕs cover).

D. Coverage Adjustment

The PIR is equipped with a moveable mirror carrier which allows adjustment of

the coverage pattern in the horizontal direction after the unit is mounted (See

Diag. 4). Although it can be used in conjunction with either mirror, its feature is

particularly useful when using the Long Range/Curtain Mirror, because it can

compensate for mounting on an uneven wall, and assist in accurately aiming

down long corridors through doorways, and around obstructions. Adjustment is

accomplished by depressing one of the rectangular plastic ears at the lower left

and right sides of the mirror holder. This pivots the mirror assembly to the left

or right up to 5¡.

E. Ceiling Mounting

The versatility of the PIR permits optional ceiling mounting as an alternative to

the wall mounted configurations described herein. Mounting the unit on the

ceiling, using the Long Range Curtain Mirror, can provide a 15 to 18 ft. (4.6m to

5.5m) forward-looking ÒcurtainÓ pattern as illustrated in Diagram 6.

MPORTANT: When hallway pattern masking is used, be sure the PIR is

set for Instant Response Mode. Failure to do so results in allowing an

intruder to go undetected.

NOTE: If the hallway is less than 10 feet (3m) wide, the full 40 feet (12m) cov-

erage will not be obtained, but will be slightly reduced. To minimize this effect,

the mirror can be aimed left or right as described in the ÒCoverage

AdjustmentÓ section of this document.

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@@g

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4'

(1.2m)

0 

18'

(5.5m)



TOP 

VIEW

[at 12 ft. 

(3.6m)

ceiling

height]



0 10' 15' 20' 

(3m) (4.6m) (6m)

Mount unit so that

PIR window is towards

detection area.



CEILING

FLOOR

CEILING 

HEIGHT



10'

(3m)



12'

(3.6m) SIDE 

VIEW



Diagram 6: CEILING MOUNTED UNIT USING LONG RANGE

(“CURTAIN”) MIRROR

MOUNTING SURFACE

HOOKS (2)

WIRE ENTRY AREA 

SEE DETAIL "A"

SLOTS (4) 

ENGAGE SLOTS 

ONTO HOOKS 

AND SLIDE 

HOUSING BASE 

DOWN FIRMLY

WALL 

PLATE

EARS (4) FOR 

CORNER 

MOUNTING

(MAY BE

BROKEN OFF 

IF MOUNTED 

ON FLAT WALL)

CIRCUIT 

BOARD 

SUPPORT 

POSTS (2)



CIRCUIT 

BOARD 

MOUNTING 

TABS (2)

HOUSING 

BASE 

(COVER 

REMOVED)

FOR CONCEALED 

WIRING, CUT A 5/16 (8mm) 

DIAMETER (MAX) WIRING 

HOLE IN MOUNTING 

SURFACE. CENTER OF 

HOLE MUST BE ON LINE 

WITH TOP EDGE OF WALL 

PLATE.

INTERLOCKING TAB ENTERS CUTOUT 

IN BASE-LOCKS BASE TO PLATE



HOLE (3) FOR MOUNTING 

THE PLATE TO WALL

HOOKS (2)

DETAIL A



Diagram 5:

MOUNTING DETAILS

FOR CONCEALED WIRING,

CUT A 5/16Ó (8mm) DIAMETER

(MAX) WIRING HOLE IN

MOUNTING SURFACE. CENTER

OF HOLE MUST BE ON LINE

WITH TOP EDGE OF WALL

PLATE.

CIRCUIT

BOARD

SUPPORT

POSTS (2)

HOLES (3) FOR MOUNTING

THE PLATE TO WALL.

DETAIL A

F. Inverted Mounting

If small pets have access to the area protected by the detector, this section

pertains.

Mount the detector and wall plate inverted (the PIR window at the top) with the

wall plate tilted forward (downward). Four self-adhesive rubber spacers have

been provided to aid in tilting the wall plate.

Note that while this procedure adjusts the PIR zones so that small animals will

not be detected, a crawling intruder will also go undetected.

The spacers are to be used with the wall plate only when the wide angle mir-

ror is in use.

Mounting flat on a wall

Stack two spacers between the wall and each of the two mounting bosses on

the rear of the wall plate at the end opposite to the wiring entry.

Corner mounting

1. Affix one of the spacers to the rear surface of each of the two corner mount

tabs on the wall plate, on the end opposite to the wire entry access cutout.

2. Follow the ÒNormal MountingÓ steps 2, 3 and 4 described previously, but ori-

ent the wall plate so that the wire entry access cutout in the wall plate is

positioned at the bottom.

- 2 -

- 3 -

TROUBLESHOOTING

PROBLEM PROBABLE CAUSE REMEDY

Intermittent Rapid temperature Locate source and reposition

Alarm change. Check for detector.

electric or gas heaters,

open flames, electric

arcs, etc.

Drafts causing drapes, Eliminate source of motion.

light fixtures, display

material, etc. to move.

PIR does not Polling loop voltage Ensure that proper polarity and

appear to be supplied to PIR is in- adequate voltage is supplied,

operating. adequate, intermittent, and that wiring is intact (no

or polarity reversed. opens or shorts) and connec-

tion is secure.

Check for presence of 8-11VPP

at terminals of the PIR. If too

low, polling loop run to control

may be too long for the wire

gauge used,or polling loop cur

rent drain may be excessive.

Increase wire gauge or add No.

4197 Polling Loop Extender

module to location in the loop

where voltage boost is neces-

sary and connect it to a power

source. Alternatively, the PIR

can be tested using a 9-volt

source (such as a 9-volt battery

or a 9-volt power supply).

LED Inoperative Switch #2 not set to Set switch #2 to ÒWalk TestÓ

ÒWalk TestÓ. position.

LED malfunction. Check Return unit for service.

for broken or shorted

leads.

Detection area Repositioned furniture Caution customer about

changes. or equipment in the layout changes. Re-position

protected area. detector if necessary.

Mounting surface is Mount on secure surface.

unstable. A few degrees

of vertical shift can

change range sub-

stantially.

TO THE INSTALLER

Regular maintenance and inspection (at least annually by the installer) and fre-

quent testing by the user are vital to continuous satisfactory operation of any

alarm system. The installer should assume the responsibility of developing and

offering a regular maintenance program to the user, as well as acquainting the

user with the proper operation and limitations of the alarm system and its com-

ponent parts. Recommendations must be included for a specific program of

frequent testing (at least weekly) to insure the systemÕs operation at all times.

TESTING

IMPORTANT: Wait at least two minutes after applying power before attempting

to walk-test unit.

Before testing the detector, the protected area has to be clear; if more

convenient, the walk test can be done after close of business.

The protective systemÕs control should be disarmed during the procedure to pre-

vent reporting unwanted alarms.

Walk Test

Place switch #2 to the WALK TEST position, replace the front cover, and then

walk through the protective zones. The LED will light whenever motion is detect-

ed. Be sure that the Mode Select switch #1 is in the same position in which it will

be used. For example, place it in the INSTANT position if the long range mirror

is installed. See ÒSignal ProcessingÓ above.

BE SURE TO PLACE THE WALK TEST SWITCH IN THE “DISABLE” POSITION

AFTER THE INITIAL WALK TEST IS COMPLETED.

Subsequent periodic walk tests must be done in conjunction with the indicators

of the associated control panel.

The absolute range of all Passive IR units is subject to variation because of dif-

ferent types of clothing, backgrounds and ambient temperature. For this reason,

ensure that the most likely intruder routes are well within the PIRÕs protective

zones and that walk-testing is carried out along these routes.

To either manually enter or "learn" the unit's serial number:

1. Enter

✱

93 Zone Programming mode.

2. Enter the Response Type and other zone information for the PIR, pressing [

✱

]

to advance from prompt to prompt.

3. At the "Input Type" prompt, enter "6" for SL (Serial Polling Device) and press [

✱

4. At the "Learn S/N?" prompt, enter (Y)es.

5. At the "Input S/N" prompt, either enter the serial number manually (and a "1" for

the loop number), or fault the PIR being learned (the keypad will "beep" to

confirm signal). Wait 3Ð6 seconds and fault the PIR again (the keypad should

beep again to confirm).

The PIR should now be learned. A "1" should appear under the "L" on the zone

summary screen. (If an "N" is displayed, the PIR is not learned.)

6. Press [

✱

] to continue programming zones.

If programming manually, be sure that other polling loop sensors are not activated

so that they cannot send a signal to the control while this PIR is being programmed

(mask PIRs, don't open/close doors, etc.).

¨ IMPORTANT Ã

To be sure that other polling loop devices are not activated when entering ser-

ial numbers manually, power the system down, disconnect the polling loop at

the control, power back up again, and immediately enter the program mode.

Then proceed to Step 1 (below). Remember to re-connect the polling loop

when programming is complete, powering the system down first.

MAINTAINING PROPER OPERATION

In order to maintain the detector in proper working condition, it is important that

the following be observed by the user.

1. Power should be provided at all times.

2. Units should never be re-aimed or relocated without the advice or assistance

of the alarm company.

3. The physical surroundings of the protected area should not be changed. If

furniture or stock is moved, or air-conditioning or additional heating is

installed, the system may have to be readjusted by the alarm company.

4. Conduct Walk-Test frequently (at least weekly) for proper coverage by each

detector.

SPECIFICATIONS

Detection Method: Passive infrared

Coverage: 40 ft (12.2) x 50 ft (15.2m) (wide angle mirror);

80 ft (24.4m) x 7.5 ft (2.3m) (long range/curtain mirror).

Detection Zones: 12 zones (7 main, 4 intermediate, 1 downward) (wide

angle mirror); 1 zone, 7 tiers (long range/curtain mirror)

Operating Modes: Signal Processing/Instant Response (Installer Selectable)

Detectable Walk

Rate: 0.5 Ð5 ft/sec. (0.15Ð1.5 m/sec)

Mounting Height: 7 ft nominal (2.1m), wall mounting

Indicator: Red LED

Input Voltage: 8Ð11V peak-to-peak at polling loop terminals.

Current Drain: Less than 1 mA (LED inactive), 9 mA approx. (LED

active)

Operating

Temperature: 0¡to 50¡C (+32¡ to +122¡F)

Operating

Humidity: Up to 95% RH (max.), non-condensing

Dimensions: 3

ÓW x 4

Ó H x 2Ó D (85mm x 120mm x 50mm)

ALARM DEVICE MANUFACTURING CO.

A DIVISION OF PITTWAY CORPORATION

165 Eileen Way, Syosset, New York 11791

N4756–8V1 11/95

ADEMCO SIX YEAR LIMITED WARRANTY

Alarm Device Manufacturing Company, a Division of Pittway Corporation, and its divisions, subsidiaries, and affil-

iates (ÒSellerÓ), 165 Eileen Way, Syosset, new York 11791, warrants this sensor to be in conformance with its own

plans and specifications and free from defects in materials and workmanship under normal use and service for 72

months from the date stamp control on the product. SellerÕs obligation shall be limited to replacing, or repairing at

its option, free of charge for materials or labor, a sensor which is proved not in compliance with SellerÕs specifica-

tions or proves defective in materials or workmanship under normal use and service. Seller shall have no obliga-

tion under this Limited Warranty or otherwise if the sensor is altered or improperly repaired or serviced by anyone

other than Ademco factory service. In case of defect, return the sensor to an authorized Ademco distributor for an

immediate replacement.

THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY, OR FITNESS FOR A PAR-

TICULAR PURPOSE OR OTHERWISE, WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF.

IN NO CASE SHALL SELLER BE LIABLE TO ANYONE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES

FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, OR UPON ANY OTHER BASIS

OF LIABILITY WHATSOEVER, EVEN IF THE LOSS OR DAMAGE IS CAUSED BY THE SELLER'S OWN NEGLI-

GENCE OR FAULT.

Seller does not represent that its sensor may not be compromised or circumvented; that the sensor will prevent

any personal injury or property loss by burglary, robbery, fire or otherwise; or that the sensor will in all cases pro-

vide adequate warning or protection. Buyer understands that a properly installed and maintained alarm may only

reduce the risk of a burglary, robbery, fire or other events occurring without providing an alarm, but it is not insur-

ance or a guarantee that such will not occur or that there will be no personal injury or property loss as a result.

CONSEQUENTLY, SELLER SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY, PROPERTY DAMAGE

OR OTHER LOSS BASED ON A CLAIM THE SENSOR FAILED TO GIVE WARNING. However, if Seller is held

liable, whether directly or indirectly, for any loss or damage arising under this Limited Warranty or otherwise,

regardless of cause or origin, Seller's maximum liability shall not in any case exceed the purchase price of the sen-

sor, which shall be the complete and exclusive remedy against Seller. This warranty replaces any previous war-

ranties and is the only warranty made by Seller on this sensor. No increase or alteration, written or verbal, of the

obligations of this Limited Warranty is authorized.

WARNING!

THE LIMITATIONS OF THIS PASSIVE INFRARED MOTION DETECTOR

While the Intrusion Detector is a highly reliable intrusion detection device, it does not offer guaranteed protection against

burglary. Any Intrusion Detection device is subject to compromise or failure to warn for a variety of reasons:

¥ Passive Infrared Motion Detectors can only detect intrusion within the designed ranges as diagrammed in this instal-

lation manual.

¥ Passive Infrared Motion Detectors do not provide volumetric area protection. They do creat multiple beams of protec-

tion, and intrusion can only be detected in unobstructed areas covered by those beams.

¥ Passive Infrared Detectors cannot detect motion or intrusion that takes place behind walls, ceilings, floors, closed

doors, glass partitions, glass doors, or windows.

¥ Mechanical tampering, masking, painting or spraying of any material on the mirrors, windows or any part of the opti-

cal system can reduce the detection ability of the Passive Infrared Motion Detector.

¥ Passive Infrared Detectors sense changes in temperature. However, as the ambient temperature of the protected area

approaches the temperature range of 32û to 40ûC (90¡ to 104¡F), the detection performance can decrease.

¥ This Passive Infrared Detector will not operate without appropriate DC power connected to it, or the DC power is

improperly connected (i.e., reversed polarity connections).

¥ Passive Infrared Detectors, like other electrical devices, are subject to component failure. Even though they are

designed to last as long as ten years, the electronic components could fail at any time.

We have cited some of the most common reasons that a Passive Infrared Motion Detector can fail to catch intrusion.

However, this does not imply that these are the only reasons, and therefore it is recommended that weekly testing of this

type of unit, in conjunction with weekly testing of the entire alarm system, be performed to ensure that the detectors are

working properly.

Installing an alarm system may make one eligible for lower insurance rates, but an alarm system is not a substitute for

insurance. Homeowners, property owners and renters should continue to act prudently in protecting themselves and con-

tinue to insure their lives and property.

We continue to develop new and improved protection devices. Users of alarm systems owe it to themselves and their

loved ones to learn about these developments.

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