XY-5202 4-Sensor Car Ultrasonic Backup / Parking Sensor System - Black + Red
.Rate Voltage:12V; Detecting Distance:0~2.5m; Ultrasonic Frequency: 40KHz; Working Temperature:-30~+70 degree; Display Working Temperature: -20~+60'C; Detects the distance between the car and back obstruction with ultrasonic sensors installed at the rear bumper of car.The obstruction image will be shown via the camera; With the change of alarm sound safe area can be detected correctly. It is best choice for the safe of your car.