Automatic Door, Automatic Gate, Automatic Window manufacturer / supplier in China, offering Mi01-R IP54 Microwave Angle Adjustment Door Open Sensor with Presence Timer and Ifrared Output, Ms02-R 2 Kind of Infrared Frequency Distinguish Infrared and Microwave Combined Auto Door Opening Sensor, Ms03-R Factory Direct Sales of Infrared and Microwave Composite Smart Sensors for Door Opening and Closing Devices and so on.