... parking sensors led display 1 BiBi-alarm voice indicator 2 led display 0.3-2.5m 3 Waterproof Parking Sensor, LED Parking Sensor,Car Parking ... reversing system, reversing lights flash and buzzer sounds "Bi", then parking sensor turns on automatically. * When vehicle reverse away 2.50 ... , but shall connect probe according to label requirement. thermometer and parking sensors led display