Proximity Sensor, Photoelectric Sensor, Vehicle Loop Detector manufacturer / supplier in China, offering 16m Pmf80RF Outdoor Infrared Retro-Reflective Optical Sensor for Industrial Overhead Doors, Pmf80RF Long Range Laser Light Retro-Reflective Photoelectric Sensor for Industrial Roller Shutter Doors, Garage Door Sensor 16m Reflective Photocell Industry Door Safety Photoelectric Switch and so on.