Alarm System, Security Products, Beam Sensor manufacturer / supplier in China, offering Outdoor Wireless Infrared Wall with Remote Control, Touch Screen Tuya WiFi 4G Alarm System with CID Protocol Supported (ES-X8A), Infrared Baluster Infrared Fence Infrared Barrier IR Detector Infrared Beams Photoelectric Beam Sensor (ES-10100L/W) and so on.