Proximity Sensor, Photoelectric Sensor, Vehicle Loop Detector manufacturer / supplier in China, offering 12-24V Retro-Reflective Photoelectric Sensor Switch for Automatic Garage Doors, 12-240V Double Deck Stereo Parking Sensor with Through Beam Infrared Light, 25m Opposed Beam Photoelectric Sensor NPN/PNP for Parking Lot Collision Avoidance System and so on.