The car radar anti-collision system is a safety auxiliary device for car driving, parking, etc. Its principle is similar to the ranging of bats. It uses the and control of microcomputer system calculations to indicate the direction of obstacles and the distance between the car body and obstacles through sound and display, so as to prevent collisions before they happen.Functional features of this anti-collision system:Anti-scratch corners in front of the car, anti-collision in the rear of the carEight-direction detection, eight-digit distance displayMicrocomputer intelligent control, accurate digital display of obstacle distanceNot affected by the environmentAnti-electromagnetic interference, no effect on the original electronic system.The probe is embedded and configured in multiple colors. The sensor is exquisite and compact, and easy to install.Car reversing radar technical parameters:Detection distance: behind the car: 0.3-2.0m in front of the car: 0.3-1.2mWorking voltage: dc12v (+-2v)Working current: 20ma-200ma Power: 2wDetection sound wave frequency: 40khz Detection angle: hGreater than 80 degrees vGreater than 70 degreesWorking temperature: -40-80 Warning volume: 70DBAlarm prompt mode:Voice prompt: voice, beep, voice + beep, silent four modes can be switched,Digital prompt: display the distance of the obstacle and the direction of the obstacle at a glanceThe product appearance and printed words depending on the batch, but this does not affect useColor: WhiteMaterial: plasticPackage Contents:1 x monitor8 x Reverse SensorsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.