... Sensor System 2.Parking Sensor 3 color LED display&rear 4 sensors 3.BiBi-alarm sound or ... mark,RoHS parking sensor : LED Parking Sensor System details: 1,Numeral and color LED display 2, Step-up buzzer ... alarm 3,Left and right obstacle indication 4,Numeral display from ... 3,4 sensors for option 7,Display size: 132*25*22mm LED Parking Sensor System Features:1. ...