By connecting the kit 6/921 to any screen available on the car, you can visibly locate possible OBSTACLES, by means of colored areas determining the car-distance.At the same time, the kit 6/921 will also recognize the REAR-CAMERA-SIGNAL (when car is fitted with a rear-camera) and consequently DIVIDES THE SCREEN in two parts: On the LEFT, you will see the rear-camera picture On the RIGHT, you will see the sketched car (as per attached 6/921 Data-sheet)  The parking-kit 6/921 comes complete with: Central Box, with Video-exits and Input for the rear-camera-signal 4 PHONOCAR-sensors (we are using also in combination of all current parking-kits) A series of Adapters, flush-mount-adapters included  When connecting the central-unit to the rear-camera-input of a Multimedia-device, the monitor will show only the active parking-symbol. On the other hand, when there is an installed rear-camera, you can visualize both: rear-camera-picture and active parking-symbol. Control box unit 108x78x32 mm. Power 10 ÷ 25 V Automatic de-activation - Sensor dimensions Ø 18x17 mm. Adjustable depth 17 mm. Installation hole Ø 18 / 22 mm. Operating Temperature - 20 +70 °C Sensor cable length 2,5 m. Buzzer cable length 3 m. Flat supports for installation from outside the bumper. 4 Inclined supports for installation from outside the bumper. 4 Flat supports for installation from inside the bumper. 4 Inclined supports for installation from inside the bumper. 4