Proximity Sensor, Photoelectric Sensor, Vehicle Loop Detector manufacturer / supplier in China, offering IP67 Infrared Photoelectric Switch Photo Eye Sensor for Optical Turnstile Access Control, 16m Retro-Reflective Photoelectric Sensor for Roller Shutter Doors and Garage Doors, 20m Infrared Opposite Optical Sensor for Flap Barrier Turnstile Gate and so on.