Set of reversing parking sensors led-graph 4 sensors black "gold" 18mm

A set of reliable parking sensors, which includes: 4-sensor control unit, 4 black Gold 18mm sensors, LED display with a graphically presented image of the vehicle. hole saw for drilling holes in the bumper installation instructions The parking sensor is a device that supports parking and reversing the car. It works on the principle of sonar - it emits ultrasonic waves, which, when reflected from an obstacle, allow you to determine what distance separates the car from the obstacle. When reversing, the device correctly recognizes obstacles in the way of the vehicle and warns the driver by signaling with a sound (appropriate to the distance from the obstacle) or using the LED display. Full Specification: Operating Range/Sensitivity 0-2.5m Power Supply 12V Operating Frequency 40KHz Operating Temperature -30C--+70C Mounting Diameter 18mm