Features: Suitable for all on the market, Equipped with high-precision GPS + Beidou dual-channel module Solar charging function, Use the light intensity sensed by the sensor to adjust the screen brightness Adopt color screen high-definition LCD display Adopt carbon fiber appearance body with the car, automatic sleep function when parking Product description This product is a direct tire pressure monitoring system, which can monitor Tire pressure and temperature status, abnormal conditions and alarm, you do not need to use Unscientific methods such as visual inspection and knocking on the tires can be used to whether the tires are leaking, There is no need to worry about abnormal tire pressure and temperature. Product parameters Solar Vehicle Speed Tire Pressure Monitor Power supply: DC5V Solar charging: 100MA GPS data refresh rate: 1 s Wireless transmission frequency: 2.4GHzGPS Speed accuracy: Less than 0.36Km/hGPS Battery: 750MA Working temperature: -40~+80 Cold time: 32s (average) Hot time: 32s (average) Color: black Material: ABS+PC Style: Built-In Product Features Main function and alarm function Vehicle speed, time, altitude, tire pressure, tire temperature display Tire pressure alarm, tire temperature alarm Package Contents: 1 x heads up display Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.