For truck/pick-up/bus application parking sensor Main unit is 100 ... -vibration rubber sensor. VP-280 WIRELESS PARKING SENSOR for truck / pick-up / bus application ◊Wireless connection between LED display and ... , thus can be easily installed on trucks, long vehicles, pick ups, buses, etc. ◊ Signal transferred by carrier current, ... wire well. VP-280 Wireless Parking Sensor for truck/pick up/bus application