Car parking sensor consists of ultrasonic sensor. Digital control box, camera and LED/LCD/TFT display. This system detects the distance between the car and back obstruction with ultrasonic sensor installed at the rear bumper of car. The obstruction image will be shownvia the camera. With the change of alarm sound, detect the safe area correctly. It is best choice for the safe of your car. Sensors itself accompany the function to detect faulty sensors if abnormal situation happaned.