TPMS
Tire Pressure Monitoring System
System Overview
Press and hold the left button "M" for three seconds to turn on/off.
- The monitor can automatically power on/off.
- When the data is abnormal, the device will update the data in real time.
1. Device Function
- Real-time monitoring of tire pressure & temperature.
- Supports solar charging and USB charging.
- Alarm thresholds for tire pressure/temperature can be set.
- Features air leakage alarm, high/low pressure alarm, and high temperature alarm.
- Allows for changeable tire position.
2. Schematic
Solar charging
Tire pressure unit:
Tire temperature unit:
Power display
Tire pressure data
Tire position
Tire temperature data
3. Screen Alarm Analysis Diagram
Sensor disconnection alarm
Alarm symbol
High tire pressure alarm
Device battery low alarm
Air leaking alarm / Low tire pressure alarm
High temperature alarm
4. Display Parameter Setting
Maximum pressure
Pressure unit
Minimum pressure
Maximum temperature
Temperature unit
To enter the setting mode, long press the "M" button for 3 seconds. The buzzer "Bi" sounds to enter the setting mode. Short press the "M" button to select the setting equipment parameters, including the pressure unit (Bar/Psi)/temperature unit (°C/°F)/maximum pressure/minimum pressure/maximum temperature. Adjust parameters by short pressing "+" or "-", and then long press "M" for 3 seconds to save and exit.
- Pressure unit setting: When "bar"/"psi" flashes, press "+" or "-" to select the pressure unit. Long press the "M" key to save the setting. (Factory default is "bar")
- Temperature unit setting: When "°C" or "°F" flashes, press "+" or "-" to select the temperature unit. Long press the "M" key to save the setting. (Factory default is "°C")
- Maximum pressure setting: In the "PH" setting state, the maximum pressure value flashes. Press "+" or "-" to adjust the pressure value, and long press the "M" key to save the setting. (Adjustable range: 0.6-6.0bar, factory default setting is 3.5bar)
- Minimum pressure setting: In the "PL" setting state, the minimum pressure value flashes. Press "+" or "-" to adjust the pressure value, and long press the "M" key to save the setting. (Adjustable range: 0.5-5.9bar, factory default setting is 1.8bar)
- Maximum temperature setting: In the "TH" setting state, the maximum temperature value flashes. Press "+" or "-" to adjust the temperature value, and long press the "M" key to save the setting. (Adjustable range: 50°C-90°C, factory default setting is 68°C)
5. Display and Sensor Pairing
Pairing: After entering the pairing mode, short press "M" to select the tire to be paired. At this time, inflate the tire or screw the sensor to the air nozzle. After the display receives the signal, "--" will become data, indicating the tire pairing is successful. Press "M" to select the next tire to be paired, and after all are paired, long press the "M" button to save the settings.
Note: long press the "+" key can not save the settings.
6. Swap Sensor Positions
- Enter the sensor position exchange mode: press the "M" key 10 times continuously, the buzzer "Bi" will enter the tire exchange mode, and "FL" will flash, as shown in the figure below.
- Setting operation: After entering the setting page, short press "M" to select the first sensor to be exchanged. After the selection is successful, its symbol will flash, then press the "+" key to adjust the second sensor to be exchanged, and then press the "M" key to confirm the swap, and finally press and hold the "M" key to save the settings.
Note: long press the "+" key can not save the settings.
FL wheel flashes
FL wheel symbol
RL wheel symbol
FR wheel symbol
RR wheel symbol
7. Equipment Parameters
Project | External sensor | Internal sensor | Display |
---|---|---|---|
Working frequency | 433.920MHz ± 0.1Mhz | ||
Operating Voltage | 3V | 3V | 3.7V |
Working current | Static ≤1uA, <15mA | Static ≤1uA | Static ≤50uA, <5mA |
Surrounding temperature | -20°C ~ +80°C | -40°C ~ +120°C | -40°C ~ +70°C |
Monitoring range | Pressure: 0-8Bar, Temperature: ±2°C | Pressure: ±0.1 Bar | |
Precision | Pressure: ±0.1 Bar |
8. Sensor Installation
External sensor installation
- Remove the original tire valve cap.
- Screw in the six-angle nut.
- Install the tire pressure sensor (position indicated on the sensor).
- Tighten the tire pressure sensor.
- Check for air leaks with soap water.
- Replace the valve cap.
- Test with a balancing machine.
- Adjust and balance, install the balance block.
Built-in sensor installation
- Remove the original tire valve cap.
- Screw in the six-angle nut.
- Install the tire pressure sensor (position indicated on the sensor).
- Tighten the tire pressure sensor.
- Check for air leaks with soap water.
- Replace the valve cap.
- Test with a balancing machine.
- Adjust and balance, install the balance block.
Battery replace
Replace with a new battery (CR 1632).