Microwave Sensor, Infrared Sensor, Photocell manufacturer / supplier in China, offering Yoursensor Ys022 Swing Door Top Scan Safety Sensor High-Performance Infrared Motion Door Sensor, Yoursensor Safety Presence Detection Active Infrared Sensor for Main Entrance Swing Door, Yoursensor Ys022 Active Infrared Top Scan Sensor for Automatic Swing Door Operator and so on.