Car part: mirror parking sensor with learning fun

Car part: Mirror parking sensor Specification 1. compatible with any cars2. automatic detection obstacles once reversing gear is activated3. super wide detective angle prevents side impact4.LED direction indicator of left, middle and right5.4 sensors available in various colors and size for customer to select6.simulative in three colors7. waterproof sensors work well under severe weather and temperature condition8.high sensitivity9.BiBi alarm soundTechnical parameters:1.Rated voltage: 12V DC Operating range: 9-16V Rated current: 20 200mA2.Working temperature: -30 +80°C3.Ultrasonic frequency: 40kHz4.Detective range: 0.2 2.5m5.Size: 77mm*31mm*21mmRemark : Learning function is optional (increasing price USD1.0)Current Price15-16U.S.DMin order quantity50 setsTotal supply20000set/setsDelivery Date18daysValidity2011Voltage12VPer carton20 setsModelPw-240-4