LED Car Parking Sensor With Learning Function

car parking sensor Specification Anti-false alarmSelf-testing function, learning functionAutomatically identify spare tyre or tow-bar without false warning, remember it as part of the vehicleDifferent alarm sounds can remind the nearest obstruction lies on front or rearFront sound: BoBoBo Rear sound: BiBiBiOne LED display and one control unitOpposite indication on display represents front or rear directionFront and rear sensors for full front and rear coverageDisplay with built-in buzzer and alarm sound ON/OFF switchRated voltage: 12V DC Operating range: 9-16VWorking temperature: -30 +80°CRated current: 20 200mAUltrasonic frequency: 40kHzDetective range: Front: 0.3 0.8m Rear: 0.3 1.5mSize: 99mm*30mm*17mmCurrent Price 11-20 U.S.DMin order quantity50 setsTotal supply20000set/setsDelivery Date18daysValidity2011Voltage12VPer carton20 setsModelPW-226L-8 sensor: