... 4.CE,FCC,e-mark,RoHS parking sensor : LED Parking Sensor System details: 1,Numeral and color LED display 2, Step-up buzzer alarm ... 3m 5,Display unit with built-in buzzer 6,2,3,4 sensors for option 7,Display size: 132*25*22mm LED Parking Sensor System ... in the display housing. 8.6-sensor model, 8-sensor model could also be made of Speaker, Wireless type parking sensor.LED Parking Sensor System also ...