Auto Parking Sensor System with optional LED Display Specifications: 1. Digital LED display, 4 rear ultrasonic sensors, "Bi Bi..."Voice alerting, 2. Turns on automaticallywhen youbegin toreverse. 3. If an object is detected while backing up, the system omits audible beeps, as well as shows the distance on the LEDdisplay telling you the distance from the object. 4. Fit any make of car or vehicle, van, caravan, trailer and horse boxes. 5. Waterproof and shockproof, anti-fault information technology 6. More-stable two-angle sensor,horizontal and vertical for detection 7. All kinds of sensor colors and styles are avaiable 8. High quality and easy to install 9. Human speaking warning is optional Technical Parameters: Rate voltage 12V Operation voltage range 9-16v Rated current 20-200mA Detecting distance 0-2.5m Working temperature -30 +70 degree Display working temperature 0 +60 degre Ultrasonic Frequency 40HKZ Package Includes: 1x LED display monitor 1x Main control box 4x Parking sensor 1x Power cable 1x 22mm drill 1X English manual Optional Sensor Colors: For sample order, optional sensor color is: silver,white,black. These are frequently used colors that we have in stock. After payment on samples, we will send you the default black, if you need other color, please notify us. Thanks! For quantity order, we have multiple sensor colors for option, please contact us for more details. Easy Installation: