... ,Rohs,FCC Wireless LED Display Car Parking Sensor 1,To enter the reverse, the radar system to automatically enter ... the working state and the sensors can self-check.If some one not work the display ... ,Three colors(red,yellow,green) five segment display,intelligent identify obstacles directions and distances.3,no ... /ctnMEAS:53*32.3*42cm Wireless LED Display Car Parking Sensor