Proximity Sensor, Photoelectric Sensor, Vehicle Loop Detector manufacturer / supplier in China, offering IP67 Photocell Switch Optical Beam Sensor with Smaller and Clearer Laser Liked Light Spot, NPN 5m-30m Infrared Photo Sensor for Glass Wing Optical Turnstile, Wholesale IP67 Through Beam Optical Sensor Photoelectric Switch for Sliding Automatic Doors and Turnstiles and so on.