Parking Sensor System with Wireless LED US READING (FEET) Wireless LED display with 4 sensors Parking Aid System Wireless LED, "FEET" reading, 4 sensors, alarm 8 - 10 meters wireless transmission, without worrying hiding the connection line between the monitor and the control unit Brand New from the maker GEARFLAG   Wireless connection between display and control unit 4 sensors to cover rear middle and rear corner range Display reading in "feet" unit Easy DIY Excellent for SUV, Trailer, Cars and Pickup Built in alarm features three different beeping frequency for audible alert Left and right LED sections to show left and right rear corner condition Overall Sensor Number 4 Monitor Type LED Detection Range 2.5 to 1.2 feet Connection for display Wireless Operation power DC 12V Wireless Range 8 meters Left rear corner detection Yes Right rear corner detection Yes What is in the box Main control unit LED display 4 Black Sensors English Manual Hole saw for sensor installation