Microwave Sensor, Infrared Sensor, Photocell manufacturer / supplier in China, offering Ys411-H Automatic Door Opening Wireless Sensor Switch / Touch Button / Door Release Key Switch OEM ODM Supprot, Ys406 Automatic Door Operators Access Control Opener System Wired / Wireless Handicap No Touch / Push to Exit Push Button / Emergency Door Release Button, 433MHz Automatic Sliding Door & Gate & Garage Door & Barrier Opener Motor Reflective/Laser Infrared Beam Photocell and so on.