4 Eye Reverse Sensor Kit Matt Black with Adjustable CollarsDescription Tow bar detectable function 4 stage audible buzzer. Sensor installation height adjustable. 18. 5mm Paintable sensors. Angled heads 6, 10 and 13 degree optional added display. Optional added display (PS62, PS63, PS64) 4 and 2 Sensor Option (2 eye using C & D on the ECU control unit). Similar to 34917 kit but this kit also comes with the adjustable collars. Key Features Optional Added Display (PS62 PS63 PS64) Sensor installation height