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 DVDAPP compatible for Junsun Android DVD navigation. Plug and play, easy and convenient installation. Support English, Simplified Chinese and Traditional Chinese.Alarm MonitorTPMS simultaneously show 4 tires' preure or temperature.TPMS automatic update the tire's preure and temperature, keep your driving safe. Tire Preure Monitoring system will be warning when the tire temperature is high, preure is low. Slow and fast air leakage alarm when tire piercing. 4 PCS Tire Sensor 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% Car USB TPMS app install method: User Interface