4 sensors led parking sensor system with thermometer 1 BiBi-alarm voice indicator 2 led display 0.3-2.5m 3 Waterproof Parking Sensor, LED Parking Sensor,Car Parking Sensor System:7 bands 3 colors digital LED display with bracket.Detachable display and cableFit any make of car or vehicle, van, caravan, trailer etc.sound ON/OFF switchstage-by stage sound alarm to avoid collisionDigital meter ...