Stermay M1 User manual

USER MANAUL
UNDERWATER SCOOTER
STERMAY M1
Please read the operation instructions carefully before using this product.
Please operate in the correct way based on complete understanding.

STERMAY
Honor customers
STERMAY M1 is one type technology products which able to provide thrust power for you under water. It has small body, portable and
disassemble structure, easy to carry, use and renewal. Machine body bottom set integrated type outer configured sliding rail, coordinate
the switch part according to your requirements, able to carry different outer configure equipment (SUP, sport camera, lighting lamp, etc).
OLED display screen on machine able to indicate gear, power, signal and other information.
STERMAY M1 provide 3 types different speed for you, easily realize diving, surfing and other water recreational activities ,provide one
complete new experience!
Please read this USER MANAUL before install and use the product carefully to make you correctly use this product, strictly follow
the operation instruction to correctly install and use, avoid incorrectly install and use to caused accidents!
Please safety keep User Operation Instruction for future reference.
Hope you happily operating !
Thank you for you choice STERMAY M1!

STERMAY
Caution！
！This device complies with Part 15 of the FCC Rules / Innovation, Science and Economic Development Canada’s licence-exempt RSS(s).
Operation is subject to the following two conditions: (1) this device may not cause harmful interference. (2) this device must accept any
interference received, including interference that may cause undesired operation.
！L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et
Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux
conditions suivantes : 1. L’appareil ne doit pas produire de brouillage; 2. L’appareil doit accepter tout brouillage radioélectrique subi,
même si le brouillage est susceptible d’en compromettre le fonctionnement.
！Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
！NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.

STERMAY
1. Product overview
1.1 Product overview............................03
2. Safety warnings
2.1 Safety warnings...............................03
6. Operating instruction
6.1 How to use when diving .............................11
6.2 How to use when suspended on SUP........12
7. Outer configure equipment installation
methods
7.1 Install the M1 on the SUP...........................13-14
7.2 Install the sport camear on the M1............15
8. Maintenance
8.1 Cleaning after use ......................................16
8.2 Storage ........................................................16
8.3 Disposal at end-of-life ................................16
8.4 Warranty Policy...........................................17
3. Product Introduction
3.1 Package list .....................................06
3.2 Specification ...................................06
3.3 Product diagram.............................07
4. Assembling Instruction
4.1 Install the Battery...........................08
4.2 Remove the Battery........................08
4.3 Handle assembling.........................09
5. Charging Instruction
5.1 Battery charging .............................10
5.2 Remote Handle charging ...............10
Content
02

STERMAY
STERMAY M1 formed with head cover, body, remote handle, handle, propeller and tail cover, the power system integrated into
machine body, remote handle set signal remote system. Face of machine set OLED display screen that indicate the signal connection,
rest power volume, speed mode and other information.
STERMAY M1 able to assort the switch part to connect the over water carriage tools such as canoe to use, also able to carriage
underwater sport camera, lighting lamp and other equipment to record the underwater beautiful moment .
1. Product overview
This operation instruction recorded the correct and safety operating method and other important text contents to avoid it
hurt you and caused loss. Icon and diagram explain symbols are help you understand, maybe different to entities. Please
read and understand the relate marks and notes carefully before use the Stermay M1, and strictly follow it.
Please safety keep the operation instruction for future reference use.
Model reference for the battery of main unit M1-01 , main part battery charger XSG2552500 and USB charger K05V050100U.
2. SAFETY WARNINGS
03

！Do not use the product for users whose body status unsuitable to swim, snorkeling and diving sports.
！Do not use this product under the situation that affected by ethyl alcohol or medicine.
！Do not wear the articles which not relate to swim, such as necklace, ring, earrings and wrist-watches, etc.
！Do not use this product under bad weather, such as thunderstrom, typhoon, hail, cold waves, sea status above level 3, etc.
！Do not use this product under the dangerous environment such as water plants, shark, reef, sand stone and others.
！This product is amusement equipment, not applied in lifesaving.
！This product is for Single user only.
！This product only can be used in water, please don’t idle in air when not use,avoid the motor burned because too heat.
！This product and the accessories can’t close to fire source, can’t heavily press.
！The operating temperature of this product is 5℃-40℃,the storage temperature of any accessory of this product is 0℃-40℃.
！Before using this product, please make sure this product can work normally and the battery has enough power.
！Before using this product, please make sure that the water is suitable for swimming, snorkeling,etc., and the product is allowed.
STERMAY
04
！This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
！Children shall not play with the appliance.
！Cleaning and user maintenance shall not be made by children without supervision.
！For main unit: • Rechargeable batteries are to be removed from the appliance before being charged;
• Batteries are to be inserted with the correct polarity;
• If the appliance is to be stored unused for a long period, the batteries should be removed;
• The supply terminals are not to be short-circuited;
！For remote handle:
！In case of any damaged power cord, it must be replaced by the manufacturer or its service agent or similar authorized personnel to
avoid any possible danger.
• This part contains non replaceable batteries.

STERMAY
！Before using this product,please take protective measure,be sure to wear the life jacket or life saving equipment, and accompanied
by the diver with experience.
！When useing this product，please wear life jacket or life-saving equipment, wear well swim cap, never dress the loosen cloth, keep
safety distance with the people who are long hair or dress loosen cloth, avoid the long hair or loosen cloth rolling into propeller.
！When using this product,pay attention to surrounding environment to avoid collisions, don’t make the algae, ropes or other debris
rolling into propeller.
！Please tightly hold the handle when using this product,don’t make the head or tail of this product align to you or other people face.
！Please don’t use this product on the coastal beach, avid the sand, conch and other thin and small varias rolling into propeller.
！Please don’t use this product to dive into the depth under 5m.
！Please make ensure the battery and charger are dry before charging.
！The surrounding temperture range should keep at 10℃-40℃ when battery charging.
！Only use the charger equipped with the M1 underwater thruster.
！Only use the supply unit provided with M1 appliance to charge the battery.Other chargers are not allowed.
！Connect the charger into electric circuit first then connect the charger with battery when battery charging.
！Disconnect the charger from the circuit after charging, then disconnect the battery from the charger.
！The battery of this product can’t be disassembles, rebuild and damp.
！When you install，remove,and store the battery ,please keep this product and your hands dry and do it in a dry environment.
！If the battery send out any abnormal or deformation during usi
！Please keep the product ,including the battery,away from the water while charging.
ng or charging, please stop use or charging immediately.
！Please don’t place the battery into one sealed container to charge.
！Please don’t place the battery into where has water to charge in order to caused the battery and battery charger short circuit.
！Please don’t use when machine occur failure.
！Need renewal battery in time when battery damaged, not fully charged or battery working life obviously reduced.
！Person without permission shouldn’t repair arbitraily,unsuitably repair will caused the product leak water, damaged, fire or electric
shock.
05

STERMAY
·Main Unit*1 ·Remote Handle*1 ·Handle*1 ·Bettery*1
·Type-C*1 ·Typy-C adapter*1 ·Remote handle anti
lose rope (long type)*1
·User Manual*1
·Switching power
supply*1
·Connect Bracket
A*1
·Connect Bracket
B*1
·Camera Bracket*1
3.1 Package list
3. Product Introduction
3.2 Specification
The while machine
Size 41 x 33.5 x 17.2 (cm) 22.2V 100~240V
25.2V
2.5A
4500mAh
~3 H
0.65 kg
2.5 kg (includng Battery)
280W
5Km/h(Maxmium)
High / Medium / Low
~5m(Limit depth)
30~60 mins(Normal Using)
Sport Camera/SUP, etc
Weight
Power
Speed
Speed Setting
Working Depth
Durable time
Add-on Support
Battery Switching Power Supply
Charging Volage
Charging Current
Rate Capacity
Charging Time
Weight
Input Voltage
Output Votage
2.5A
Output Current
·Remote handle anti
lose rope(short type)*1
·O Ring*2
06
Please check whether your product package include the above articles before use this
product, if loss then please contact your distributor.
Please check whether appearance of the new machine has damages carefully after
unpacking.

STERMAY
3.3 Product diagram
Fast disassemble
Display screen
Power switch
Start-stop button
Handle Lock
Handle Lock
Track
Tail Cover
Head Cover
Top View
Bottom View
Reomte
Handle
Handle
Main Unit
07

STERMAY
4. Assembling Instruction
Must check and make ensure that installed the“O”seal ring before
connect power supply.
This product only allow adult carry out assembly work and strictly
follow this operating stipulates.
1.Press the Fast Disassemble Button to remove the Head Cover.
2.Push the Battery into cabin according the shape of Battery
Compartment until the bottom.
3.Force to tightly insert after make the Fix Position Groove of power
supply joint outer wall on Main Unit corresponding to the Convex
Rib on internal wall of battery power supply joint.
4.Turn Tighten Nut clockwise until tightened.
5.Make the Head Cover align to slot of Main Unit, lightly squeeze
and send out “Ta” sound then means it tightly locked.
4.1 Install the Battery
1.Press the Fast Disassemble Button to remove the Head Cover.
2.Turn the Tighten Nut counterclockwise until loosened.
3.Plug out the main unit power supply joint from the battery’s.
4.Remove the Battery from the Compartment by draging the
Lanyard on the battery.
5.Make the Head Cover align to slot of Main Unit, lightly squeeze
and send out “Ta” sound then means it tightly locked.
4.2 Remove the Battery
Battery
Head Cover
Tighten Nut
Fast Disassemble
Button
“O”seal ring
Battery
Compartment
Main Unit
Lanyard
08
Main Unit power supply joint
Fix Position
Groove
Battery power supply joint
Convex Rib
Lanyard

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4.3 Handle assembling
1. Main Unit is placed with the Display Screen as the front。
2. Take out the Handle ,Remote Handle.
3. Kindly pay attention to check the front and back directions of Handle and Remote Handle installations,so that the Remote
Handle is in right of Main Unit.
4. Press the Handle Key , align to the Install Hole which on side of Main Unit, insert the Handle or Remote Handle into the
corresponding hole, push into along with Head Cover direction, loosen Handle Key, and make ensure the Handle Key pop out
then the Handle or Remote Handle is locked tightly.
5. Reverse operations to remove the Handle or Remote Handle.
Main Unit
Handle
Remote Handle
Install Hole
Handle Key
Handle Key
Head Cover
Display Screen
09

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5.1 Battery charging
5. Charging Instruction
1.Connect the plug pins of Switching Power Supply to the AC
power.
2.Connect another end of Switching Power Supply to Battery
slot.
3.The Red light of the Switching Power Supply represent that
the battery is not fully charged,and Green indicates that the
battery is fuly charged.Charging time is about 3 hours.
Please make sure the battery is fully charged before first use.
Please make sure the Main Unit is at power off before you take
out the battery.
Please make ensure the battery and charger are dry before
charging.
Please unplug the Switching Power Supply when it is not
charged.
Please make sure Remote Handle is closed before charging.
Please ensure the port of Remote Handle is no water before
inserting the Type-C connector.
Please don’t operate the Remote Handle when charging.
1.Open the Seal Cover of Type-C of Remote Handle.
2.Please use 5V/1A power adapter or standard USB charger
port to charge.
3.Insert one end of the Type-C Charge Cable into the Remote
Handle and another end insert into the USB port.
4.Indicate light shows red when Remote Handle charging,
indicate light will turn green after fully charged.
5.After fully charged, be sure to close the Seal Cover tightly.
5.2 Remote Handle charging
AC power
Indicate Light
Switching Power Supply
Battery
Indicate light
10
Seal Cover
Remote Handle
Type-C Charge Cable
USB port

6.1 How to use when diving
STERMAY
6. Operating instruction
1. Press the Power Switch for 2s on Main Unit,the power is on when Disply Screen lights up,then the signal icon start flashing and
waiting signal of Remote Handle to connect.
2. Long press the F Key on Remote Handle for 2s ,the connection is successful after the Indicator light on and the signal icon is
always on.
（NOTE：Need 4 times quickly press Power
switch to process signal matching when Main Unit and Remote Handle process first
time signal connection.)
4. Short press F Key to shift three speed setting：
(The default speed is low gear after start.)
Low ：Indicator shows Blue
Medium：Indicator shows Green
High ：Indicator shows Red
The corresponding icons of three speed setting on
Main Unit display screen shown as below:
5. Press the Start-stop Button to run M1, release it down to stop.
6. Long press the F Key and Power
switch respectively to power
off your M1.
Power switch
F Key
Start-stop button
Indicator
Display Screen
M Key
Type-C
Remote handle anti
lose rope(short type)
Please make ensure the battery already be the fully charge before use.
PLease be ensure to close the Seal Cover of Type-C tightly before use.
For convenient to users operate,the Remote Handle can be wrapped
around your wrist through the short of anti lose rope during diving.
LOW Medium HIGH
11

6.2 How to use when suspended on SUP.
STERMAY
1.The operation steps for power-on and signal connection same to 6.1 (How to use when dinving).
2.After the Main Unit and Remote Handle signal are connected,the M1 suspended on SUP start working when press down M Key on
Remote Handle.
3.Short press F Key to shift the speed setting;
Short press both of M Key or Start-stop button to stop working;
Long press F Key to power off your M1.
Remove the Handle and Remote Handle from the Main Unit in advance when suspened on SUP；
For convenient to users operate on SUP, the Remote Handle can be hung around your neck with the long type of anti lose rope.
12
Start-stop button
F Key
M Key
Indicator
Type-C
Remote Handle
Remote handle anti
lose rope (long type)*1

STERMAY
7.Outer configure equipment installation
methods
7.1.1 Install the M1 on SUP (By the Connect Bracket A)
1.Make the Connect Bracket A align to the Track of Main Unit,and
slide the Connect Bracket A into the Main Unit until the screw
holes of both are aligned.
2.Rotate the Bolt on the Connect Bracket A and fasten it to the
Main Unit.
3.
Make another end of Connect Bracket A and SUP rail aligned
after the
Connect Bracket A and Track of Main Unit connection
finished.
4.Sliding into the spacing groove which vertical to SUP rail after
pressed the
Flexible Button on both side of Connect Bracket.
5.Installed on position after the
Flexible Button pop out.
13
Connect Bracket A
Bolt Track
SUP Rail
A. Please refer to the size of the standard connection bracket A as shown in the picture
to match your SUP base when you choose SUP;
B. If your SUP mounting base does not match the standard connection bracket A of this
device, please purchase another suitable support accessories
Flexible Button

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14
1. The installation method of connecting bracket B and Main Unit
is the same as that of connecting bracket A.
2. After the installation, the Main Unit with Connect Bracket B
should be keep a tilt angle with the SUP mounting base.
3. Align the Location Pin on the connect bracket B with the Limit
notch on the sup mounting base, and slowly push it into and
slide it forward to tighten it.
4. Rotate the Bolt on Connect Bracket B and fasten it to SUP
mounting base.
Bolt
Connect Bracket B
Track
Location Pin
SUP mounting base
Limit notch
Bolt
8.00mm
160.00mm
6.50mm
8.40mm
14.00mm
7.50mm
2
3
A. Please refer to the size of the standard connection bracket B as shown in the picture
to match your SUP base when you choose SUP;
B. If your SUP mounting base does not match the standard connection bracket B of this
device, please purchase another suitable support accessories
7.1.2 Install the M1 on SUP(By the Connect Bracket B)

7.2 Install the sport camear on the M1
1.Make the Camera Bracket align to the Track of Main Unit,and
slide the Camera Bracket into the Main Unit until the screw
holes of both are aligned.
2.Rotate the Bolt 1 on the Camera Bracket and fasten it to the
Main Unit.
3. Insert the installation components of underwater sport
camera(Not Provided) into the corresponding groove of
Camera Bracket ,then use the Bolt 2 insert into Camera
Bracket and fasten it.
Bolt 1
1
Track
Camera Bracket
2
3
Bolt 2
Underwater Sport
Camera (Not Provided)
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15

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8.1 Cleaning after use
Please refer the below steps for maintenance after each used to maintain the good performance:
1.Immerse the M1 in a container filled with clean water(not seawater) for 20 minutes.
2.Hold the Handle and Remote Handle ,turn it on with slow speed for 2s~3s and repeat this for 3~5 times while the product is
completely immersed into water.
3.Dry the M1 with a soft,clean,dry cloth.
4.Disammble the Remote Handle and Handle.
5.Rmove the Head cover,wipe off the water droplets outside the battery compartment，take out the battery when both hands are dry.
6.Place the Main Unit and battery at cool and air venting place to completely dry it then storage.
1.Please storage M1 in a dry place at room temperature , keep better air venting environment, avoid direct sunshine.
2.Keep away from heat,fire and children’s reach.
3.Please fully charged the battery before storage to avoid over discharge.
4.Pease charge the battery about per two months If not in use for long time.
5.Please remove and keep the battery separately in a cool, ventilating and dry place when not in use.
8.2 Storage
In order to better protect the earth, when users no longer need the product or the products service life comes to the end, please
comply with the national laws and regulations on disposal of waste electrical and electronic products and hand it over to the
local manufacturers with approved qualifications for recycling.
8.3 Disposal at end-of-life
8. Maintenance
16

STERMAY
8.4 Warranty Policy
！In case of faults during use,please contact and consult with after-service of company to avoid the delay in your use and
maintenance period.
！From the date of purchase, we could provide maintenance service for the fault of the product itself that inspected and confirmed
STERMAY or its authorized maintenance station,according to the warranty period of the host and the parts which specified as
below:
AFTER-SALES POLICY DOES NOT COVER AS BELOW:
● Already exceed the warranty period of the product.
● The damage caused by man-made and non-product quailty reasons.
● The damage caused by the Force majeure.
● The damage caused by the installation, usage, maintenance that haven’t follow the instruction of user manual.
● The damage due to peripherals,add-on devices,or accessories other than those recommended in the user manual.
● The damage due to the forced use of the product beyond the normal conditions of use.
● Unauthorized repair and change.
● The damage caused by other non - products reasons, such as design, manufacture, quality, etc.
Motor 1 Year
1 Year
1 Year
Battery
Barttery Charger
Scope Warranty Period
17

Manufacturer:
JIANGSU YOUMAY ELECTRIC APPLIANCE CO., LTD
Manufacturer's address:
No. 20 YuLan Road, XuYi Economic Development Zone, XuYi County, HuaiAn city, JiangSu Province, China
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