SS Automatic Hand Dryer

Automatic Hand Dryers. Automatic hand dryers are operated automatically when hands are placed a few inches below the infrared sensor. These touchless hand dryers do not have to have your hands placed on the hand dryer to be turned on automatically. Auto hand dryers are a necessity for any touch free bathroom.Emitting an invisible ray of infrared light, the sensor on a hand dryer is triggered when an object (in this case, your hands) moves into its path, bouncing the light back into the sensor.