... .CE,Rohs,FCC Wireless LED Display Car Parking Sensor 1,To enter the reverse, the radar system to automatically enter the working state ... to 0.3m 4 ,2,3,4,6,8,sensors for optionPacking:Unit Weight:0.56KgQTY: 20 pcsN.W.: 10 kg ... .: 12 kg /ctnMEAS:53*32.3*42cm Wireless LED Display Car Parking Sensor