Parking assistant system LED-GRAF 4 sensor black

Parking assist system is a device that supports parking and reversing the car. It works on the principle of sonar - emits ultrasonic waves that allows us, after reflection from the obstacle, to conclude what is the distance between car and obstacle. At the time of withdrawal device correctly detects obstacles and warns the driver. LED GRAF indicator indicates the distance to obstacles with an accuracy of tenths of a meter. Internally has a Buzzer-sound indicator which can be completely silenced (interuptor in the housing). Indicator size: 7,5 x 5,5 x 2,5 cm Long of cable: ~5m The set includes 4 black sensors ø 22 mm LED-GRAF indicator - Buzzer inside main unit the hole saw to drill holes in the bumper instruction manual Full specification: Range/working sensitivity 0-2,5m Power supply 12V Working frequency 40KHz Work temperature -30 ° C - +70 ° C