... 3.rear 4 sensors 4.CE,Rohs,FCC Wireless LED Display Car Parking Sensor 1,To enter the reverse, ... 2,Three colors(red,yellow,green) five segment display,intelligent identify obstacles directions and distances.3,no cross ... and exact obstacles distance indication. Specification:1,No display 2,Step-up Buzzer alarm3,Detective distance from 1 ... 12 kg /ctnMEAS:53*32.3*42cm Wireless LED Display Car Parking Sensor