Solar Tire Pressure Monitoring System
User Manual
Important Notice: Be sure to power on the main unit before installing the sensors. Illustrations in this manual are for reference only. Please refer to the actual product.
I. Installation and Usage Guide
- Power On: Long press the power button for 3 seconds to turn on. Long press for 3 seconds to power on/off.
- Install Anti-theft Nut: Turn the anti-theft nut clockwise to the base of the tire valve. [See Fig a]
- Install Sensor: Quickly screw the sensor clockwise. Air leakage during installation is normal. It will stop after the sensor is tightened. [See Fig b]
- Lock Anti-theft Nut: Use the wrench to turn the anti-theft nut counterclockwise to secure the sensor. [See Fig c]
II. Display Interface Diagram
A. Display Description / Ports:
- 1 Solar charging
- 2 Tire pressure
- 3 Tire position
- 4 Tire temperature
- 5 Battery level
- 6 Temperature unit
- 7 Pressure unit
- 8 Cabin temperature
[Diagram showing the front view of the display with numbered components]
B. Button Functions
- Type-C charging port / Receiver charging interface
- Left button: Long press in standby mode to power on/off.
- M Unit switch button: Press once to switch pressure and temperature units.
- Sound off button: Press once during alarm to mute the alarm sound.
III. Tire Pressure Parameters
| Item | Component | Operating Frequency | Operating Voltage | Operating Current | Operating Temperature | Monitoring Temperature Range | Pressure Accuracy | Display Unit |
|---|---|---|---|---|---|---|---|---|
| External Sensor | 433.9200MHz±0.1MHz | 3V | Standby Current ≤1uA, Operating Current ≤15mA | -20°C~+80°C | -40°C~+120°C | ±0.1Bar | 3.7V | |
| Internal Sensor | 3V | Standby Current ≤1uA, Operating Current ≤15mA | -20°C~+80°C | -30°C~+99°C | ±2°C | Bar/PSI | ||
| Pressure | 0Bar~+9.9Bar |
IV. Unit Switching
a. Short press the "M" button to automatically switch pressure and temperature units.
b. Automatic switching display interface for pressure and temperature units:
Pressure unit: Bar [Bar] / PSI [Psi]
Temperature unit: °C [°C] / °F [°F]
[Diagram showing pressure and temperature unit switching interfaces]
[Diagram showing PSI/°F unit display interface]
V. Battery Replacement
When replacing the sensor battery, please remove and install the casing one by one. Do not mix or replace multiple at the same time. This helps avoid incorrect installation of sensor casings on the wrong tire positions.
(Button cell CR1632, operating temperature range -20°C~70°C)
- Prepare a wrench before removing the sensor. Turn the nut clockwise to separate it from the sensor, then unscrew the sensor counterclockwise.
- Use a wrench to turn the top cover of the sensor counterclockwise to remove it.
- Remove the old battery from the battery clip and dispose of it properly.
- Identify the correct polarity (positive "+" side facing up), install the new CR1632 lithium battery.
- Screw the top cover back onto the sensor and tighten it clockwise with the wrench. Insert the new battery and screw the cover on, then install it onto the valve stem (battery text side facing up). [See diagram for selecting sensor, unscrewing cover, and inserting battery]
FCC Statement
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.
Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this 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.
RF Exposure Information
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.
