Motor Vehicle Sensors Tips 1.The TPMS is only for Junsun Android Car DVD. 2.TPMS can not be used with Junsun S500/S600/S700 at the same time, due to connect the same 4pin USB cable. Feature: For Android DVD APP compatible for Junsun Android DVD navigation. Plug and play, easy and convenient installation. Support English, Simplified Chinese and Traditional Chinese. Alarm Monitor TPMS simultaneously show 4 tires pressure or temperature.TPMS automatic update the tires pressure and temperature, keep your driving safe. Tire Pressure Monitoring system will be warning when the tire temperature is high, pressure is low. Slow and fast air leakage alarm when tire piercing. 4 PCS Tire Sensors 4 PCS Tire sensors have been coded to the display, just install the sensors as per the position labels on the sensor (RR, RF, LF, LR), A replacement sensor can be easily coded; just simply mount the sensor onto the valve when the display is in coding mode Fully compatible, covering 98% Cars USB TPMS app install method: User Interface