These stainless steel motion sensor switches apply NoTouch® technology which helps reduce the spread of germs in any public building. To trigger the button, a person must simply wave their hand in front of the device to exit the building. The infrared (IR) will detect the motion and unlatch the time adjustable door. These motion sensor switches are constructed of stainless steel, allowing the device to take tough knocks in stride. The faceplate is slightly oversized for retrofit applications to cover marks from a previous install. Durable and long lasting, the button is easily installed within minutes right on site.