A parking sensor is a device that assists in parking and reversing the car. It works on the principle of sonar - it emits ultrasonic waves that, after reflection from an obstacle, allow the distance between the car and the obstacle to be determined. When reversing, the device correctly detects obstacles in the path of the car and warns the driver with an acoustic signal. The LED display shows the distance to the obstacle with an accuracy of tenths of a metre. It also has a built-in speaker (buzzer) for warning and can be completely muted with a switch on the housing. Screen size: 10 x 2 x 3 cm, cable length: ~5 m, included: 8 detectors (sensors), black, 4 extension cables for LED screen with built-in alarm, 8 sensor distribution panel (AD rear, EH front), hole saw for drill a hole in the buffer. Mounting instructions Full specification: Operating range/sensitivity 0-2.5 m Power supply 12 V Operating frequency 40 kHz Operating temperature -30 °C to +70 °C Mounting diameter 22 mm.