Matched with car LCD monitor or car DVD,car rear view camera system.
Show the distance of back obstacles by number from 0.4 meter to 1.5 meter.
Warning the real distance by buzzer.
Working Votage:12V-16V DC
Working current:10mA-300mA
Working Temperature:-30 to +70 deg. C
Working Frequency:40kHz
collocate:1pcs control box,4pcs sensors
