Mount the camera at the back of the car(on the license plate, or other suitable place).
When you parking the car, this camera will show the image behind the car, and is there anybody behind the car, avoid people crush and some obstacles, this camera will also show the driver whether parking on line.
Applicable to variety of Vehicles: car, truck, RV, -van etc.
Operating Temperature: -30-85 Celsius Degree
Voltage: DC 12V
Dimension: 40 x 20 x 20mm/1.6 x 0.8 x 0.8inches(L*W*H)