Gx-parking-4 Automatic detect obstacle when reversing. To indicate the distance by changing the warning sound and digital display Super-wide detection angle USA Microchip CPU, Quality warranty. Anti-fault warning technique, safety and accurate. All weather design Stick-on or insert-in sensors for selection Vivid，definition digital display with high quality Lacquer for display surface Product Technical Parameter working voltage : 10--15 V / DC Power : Pmax < 5W Working temperture : -20 ～ +60 Display range : S <= 1.8 VFD Parking Sensor Sound volume : .= 70 dB We can supply other type of goods you required,please contact us!