Newest Electromagnetic Car Parking Radar Sensor with LED Display and Buzzer Electromagnetic parking sensor with led display Simple and concealed installation. The sensor antenna is entirely installed inside the bumper without any drilling work Fit for any car, truck, RV or mini-van. Peel & Stick "Antenna" foil tapesensor for vehicles bumpers Detection in all directions without dead angle During approaching to an obstacle, the electronic unit activates the acoustic signaling with 3 types of signals. LED 3 colors (Green, Yellow, Red) displays to indicate the distance obstacles.