1.Parking Sensor System 2.Parking Sensor 3 color LED display&rear 4 sensors 3.BiBi-alarm sound or voice 4. ... ,FCC,e-mark,RoHS parking sensor : LED Parking Sensor System details: 1,Numeral and color LED display 2, Step-up buzzer alarm 3 ... .3m 5,Display unit with built-in buzzer 6,2,3,4 sensors for option 7,Display size: 132*25*22mm LED Parking Sensor ...