Proximity Sensor, Photoelectric Sensor, Vehicle Loop Detector manufacturer / supplier in China, offering CE Approved IP67 Optical Thru Beam Sensor for Motor Swing Barrier Gates, IP67 PNP 3.5m Retro-Reflective Optic Sensor Infrared Metal Photoelectric Switch, IP67 NPN Infrared Retro-Reflective Photoelectric Sensor Mill with CE Certificate and so on.