Features and specifications:Working voltage: 9-16V DCRated voltage: 12V DCDetection range: 0.3-2.5MWorking temperature: -30 to 70 degrees CelsiusSensor waterproof: IP40LED displayLength extension cable of sensor, 2m, 4m, 5m, 8mMinimum detection 0.3 meterComplex sensor, easy for replacement when necessary 3 years service warrantyUsing RISC high speed processor, the system quickly captures the objects approaching the bumper (response time: 90s)With the diagnostic mode, the buzzer and/or display can alert the driver which one of the sensors is defective