Parking System Specification High sensitivity BiBi alarm sound Simulative in four colors Direction indicator of left, middle and right Main MCU: microchip 8-bit micro-controller (industrial) compatible with any cars4 sensors available in various colors and size for customer to selectwaterproof sensors work well under severe weather and temperature conditionRated voltage: 12V DCOperating range:9-16VWorking temperature:-30 +80°CRated current:20 200mAUltrasonic frequency:40kHzDetective range: 0.2 2.5mSize: 135mm*26mm*27mmCurrent Price 9.5 U.S.DMin order quantity1000setsTotal supply20000set/setsDelivery Date18daysValidity2011Voltage12VPer carton20 setsModelPW-219-4 Color box sensor: