... -4-L7PTechnical Specification:1) Bus/Coach Rear 4 Parking Sensor System; 2) Sensor detection range: 0cm~2.5m;3) Display range: 45cm ... design;7) 4*L7P SmartSensor module built in double angle sensor, 22mm plastic flat , fit for spare tyre or tow bar ... : 10~35V DC;11) Industrial cables and connectors, Microchip MCU Sensor Control box Latest stable quality car reverse parking sensor system