TPMS, Car Reversing Radar, Ultrasonic Sensor manufacturer / supplier in China, offering Ultrasonic Transmission and Reception Signal Processing Integrated Distance Measurement Module Sensor, Aj-Sr04m Waterproof Ultrasonic Sensor with Separate Probe Integrated Ultrasonic Ranging Module, 40kHz Ultrasonic Distance Measurement Module Sensor for Car Distance Monitoring Ttl Communication Protocol and so on.