Our Reverse Sensing System is a sophisticated, ultrasonic sensing device designed to detect what you cannot see behind your vehicle. The Reverse Sensing System powers up when you engage your vehicle insto reverse gear. The system silently scans behind your vehicle and informs you inside your vehicle with an audible tone as it detects an object in the scanning zones. Know when you are backing up how close you are to an object, without having to keep your eyes glued to a screen. An important addition to any vehicle, Parking Sensors work with bumpers to most every Sedan, SUV, or Truck with standard or utility beds.