Enmotion Soap Dispenser.  Automatic wall dispensers release a premeasured amount of liquid. They have battery-operated infrared sensors that detect the presence of hands for touch-free operation. These dispensers mount to a wall to free up counter and floor space in offices, restrooms, or open areas. They are commonly used in restrooms, hallways, doorways, and other high-traffic areas where exposure to bacteria and germs is likely.