70mai TPMS Lite Bedienungsanleitung
70mai Tire Pressure Monitoring System Lite
User Manual
The 70mai TPMS Lite can monitor tire pressure and temperature in real-time and send the data
to a receiver wirelessly through radio frequency. After processing the data, it is shown on the
display. In case of any abnormality based on the standard pressure and temperature alarm
settings, the system will issue an alarm to alert the user.
Thank you for choosing the 70mai Tire Pressure Monitoring System Lite (TPMS Lite).
Precautions
1. The 70mai TPMS Lite monitors tire pressure and temperature, but cannot prevent tire leakage
and puncture. It is equally important to use good-quality tires. When the receiver issues an alarm,
stop the car safely and check the tires. Send the car to a workshop for servicing if necessary.
2. Installation and use of the 70mai TPMS Lite cannot replace regular maintenance and
inspection of the car. Car owners are responsible for the safety of their cars.
3. The receiver must be installed in the correct position and must not obstruct the view of the driver.
It should be installed securely to prevent unwanted movement while the car is travelling.
4. Do not operate the 70mai TPMS Lite while driving. Failure to concentrate on the road may
result in traffic accidents. Drivers are responsible for all associated risks and liabilities.
5. The 70mai TPMS Lite can inspect the tires and issue alarms automatically without the driver’s
intervention. Drivers should focus their attention on the road.
6. Due to thermal expansion and contraction, tire pressure and temperature may become higher
or lower when the car is in motion. This is normal.
7. Air leaks from tires naturally, so tire pressure will decrease over time. This is normal and is not a
result of using the 70mai TPMS Lite.
8. Incorrect installation may affect the operation of the 70mai TPMS Lite and may even result in
damage. Please install the 70mai TPMS Lite at a workshop or with the help of a qualified technician.
9. The battery of the receiver may deplete when the 70mai TPMS Lite is not used for a prolonged period
of time. In such cases, charge the receiver using a USB cable before using the 70mai TPMS Lite.
10. Strong impact or vibration may damage the 70mai TPMS Lite and prevent it from operating or
being used normally.
11. Do not clean the 70mai TPMS Lite using chemical solvent or detergent.
12. The car manufacturer will provide referential tire pressure values. As the weight distribution
and tire specification for each car model is different, the recommended tire pressure for the
front wheels and back wheels, and at no load and full load would be different. Users can find
such information on the car door of the driver’s seat (near pillar B), inside the fuel tank cover
or in the car manual.
13. Sometimes, the receiver may not display any data or is slow in displaying the data. Do not
worry, this is the result of the data transmission strategy of the sensors. In order to prolong the
sensors’ service life and the sensors will not transmit data uninterruptedly, but will only do so
when the car reaches a certain speed or when there is a significant change in tire pressure or
temperature in a short period of time.
14. When the receiver issues a buzzer alarm, stop the car safely at the side of the road as soon as
possible and check your tires.
15. The pressure and temperature values for the four tires shown on the receiver may be different.
This is normal and the result of different wear and tear of each tire.
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Basic Parameters
Air pressure range: 0.0 to 8.0 bar (0 to 100 psi)
Working temperature: -40 to 80℃
Storage temperature: -40 to 85℃
Air Pressure Accuracy: ±0.1 bar
Temperature Accuracy: ±3℃
Operating Frequency: 433.92 MHz
Transmit power: < 8 dBm
Dimensions: 21mm (diameter), 17.5mm (height)
Weight: 9g
1. Sensor
Working Voltage: 5 V
Working Current: 1A
Working Temperature: -20 to 70 ℃
Storage Temperature: -35 to 85 ℃
Dimensions: 78.58 × 89.92 × 28.59 mm
Battery Capacity: 500mAh
Power Supply: Solar/USB cable
2. Receiver
Packing List
1. Receiver × 1
2. External sensor × 4
3. USB cable × 1
4. User manual × 1
5. Metal wrench × 1
6. Battery removal clamps x 1 (for battery
replacement)
7. Tire pressure warning sticker × 4
8. Anti-theft hex nut x 4
9. Waterproof rubber ring x 4 (used as
replacements for aged rubber rings
found during checks when the battery
is flat)
2
Product Overview
Power button
Solar panel
USB connector
Label
Adhesive
1. Receiver
2. Sensor
Note: The sensors are installed with a battery. Do not disassemble the sensors unless for battery
replacement.
C35HJD25
LF LF stands for the
left front wheel
Sensor ID
Sensor ID QR code
For production
identification only
Top markingSensor body
More marking information:
RF stands for the right front
wheel
LR stands for the left rear
wheel
RR stands for the right rear
wheel
3
：Solar charging icon
：Receiver battery/charging status
：Current tire pressure
：Current tire temperature
：Abnormal tire pressure/temperature alarm
：Bluetooth connection status
Receiver Interface
Remove the film on the adhesive and attach the receiver in the direct view of the driver.
Installing the Receiver
Receiver
4
1. First, install the hex nuts into the valves of the tires.
2. Install the sensors on the tire nozzles according to the top marking. Tighten the sensors
clockwise onto the tire valves.
Installing the Sensor
3. Use a wrench to tighten the hex nuts counterclockwise to the sensors to activate the
anti-theft mechanism.
5
Battery replacement (when the battery is flat after a long period of use)
1. Use battery removal clamps to turn the sensor housing counterclockwise.
CR 1632 lithium battery
2. Replace the battery with a new lithium battery with the positive (+) side facing up.
3. Check the waterproof rubber ring is intact. Use battery removal clamps to tighten the
sensor housing clockwise.
Waterproof
rubber ring
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Using the Receiver
1. Power On
After installing the receiver, press and hold the power button or plug in the USB cable to power on
the sensors. When powered on, the receiver will give out a “beep” before showing the tire pressure
values on the display. Initially, the display will show “- - “. This is normal. The tire pressure values
will be shown after the car has moved for 3 to 5 minutes. Alternatively, you can turn on the receiver
while installing the sensors at the workshop and the tire pressure and temperature will be
displayed on the receiver during the installation process.
2. Alarm Function
Leakage alarm
When the pressure of any tire drops by 0.2 bar or more during any transmission cycle, the
receiver will trigger a buzzer alarm and the pressure value for the affected tire will keep flashing
on the display.
The buzzer alarm can be stopped by pressing the power button or when the tire pressure stops
dropping.
High pressure alarm
When the pressure of any tire is 125% higher than the standard tire pressure at cold state during
any transmission cycle, the receiver will trigger a buzzer alarm and the pressure value for the
affected tire will keep flashing on the display.
The buzzer alarm can be stopped by pressing the power button or when the tire pressure is 0.1
bar lower than the alarm threshold. (Default high pressure alarm threshold: 3.0 bar)
* Pressure alarm settings should be adjusted for different car models based on the car manual or after consulting a
workshop.
Low pressure alarm
When the pressure of any tire is 75% lower than the standard tire pressure at cold state during
any transmission cycle, the receiver will trigger a buzzer alarm and the pressure value for the
affected tire will keep flashing on the display.
The buzzer alarm can be stopped by pressing the power button or when the tire pressure is 0.1
bar lower than the alarm threshold. (Default low pressure alarm threshold: 1.8 bar)
* Pressure alarm settings should be adjusted for different car models based on the car manual or after consulting a
workshop.
High temperature alarm
When the temperature of any tire exceeds the threshold during any transmission cycle, the
receiver will trigger a buzzer alarm and the temperature value for the affected tire will keep
flashing on the display.
The buzzer alarm can be stopped by pressing the power button or when the tire temperature is 1
℃ lower than the alarm threshold. (Default high temperature alarm threshold: 70 ℃)
Low battery alarm
When the remaining battery life of the receiver is less than 20%, the battery icon will flash.
3. Sleep Mode and Power Off
The receiver will enter sleep mode when there is no vibration and it does not receive any data from the
sensors for 5 minutes. It will turn on again when a vibration is felt while in sleep mode or when a USB
cable is plugged in. When the receiver is being turned on without a USB connection, it can be turned
off by pressing and holding the power button. When it is turned on with a USB connection, the
receiver will enter sleep mode when the power button is pressed and held.
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The “70mai” App can be used to view data and adjust tire temperature and pressure settings.
Search for “70mai” in the App store or scan the QR code below to download and install the App.
Open the “70mai” App and tap “Add Device” on the home page. Select 70mai Tire Pressure
Monitoring System Lite. Make sure the receiver is turned on and search for the receiver by
scanning Bluetooth devices. The Bluetooth device name should appear as “70mai_t02_xxxx”,
where “xxxx” refers to the last four digits of the receiver’s Bluetooth address. Once successfully
added, the device shall appear on the home page of the App.
Using the App
3. Main Functions
View tire and temperature.
Set standard tire pressure.
Set tire temperature alarm.
Bind the sensors.
Upgrade firmware.
View Help file.
1. Download and install the app
2. Adding the device
(1) Open the 70mai app. Look for 70mai Tire Pressure Monitoring System Lite. Click “View device”.
(2) Tap the “ “ icon in the upper right corner of the tire sensor homepage to enter receiver
settings. Click “Bind sensors”.
(3) Click “Bind” below the corresponding sensor. Follow the on-screen instructions and enter the
ID of the corresponding sensor to complete the binding process.
4. Bind the sensors.
Note: The product is shipped with the correct sensor ID bound. There is no need to bind them
again. In case a sensor is lost or damage, follow the above steps and bind the ID of the new
sensor. The old sensor will be automatically replaced. There is no need for manual unbinding.
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FCC
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.
Changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment. This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Service: [email protected]
For further information, please go to www.70mai.com
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