This reverse parking sensor is an effective and affordable device for any driver who cares about safety. Car parking sensor suitable for parallel parking, reversing your car, distance keeping, especially in dark, rain or any other poor rear visibility conditions. This led display parking sensor as a perfect combination of the ultrasonic-measuring technology with microcomputer, it consists of 4 precise ultrasonic sensors, a control box, distance display and buzzer. This parking radar kit works automatically to detect the obstacles in rear of the car at the distance up to 1.5m away from the obstacle.