HAND FREEGoing touchless is a high tech solution to hand hygiene compliance. Hard surfaces are significant transfer points for bacteria and viruses.Much of what people put down on a surface can be picked up by the next person who comes along, and in an age where people share more spaces and surfaces than ever before, touchless technology can help prevent cross-contamination. AUTOMATIC SENSORJust put your hand under the sensor to start the soap dispenser. You can control the amount of soap by moving your hands. When your hands are away from the sensor, the soap dispensing stops. You don?t need to touch the soap dispenser so as to avoid cross infection effectively VISIBLE WINDOWThere is a window in it, which we can see how much sanitizer has left in the dispenser. WATERPROOFThis dispenser is water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Can be used in wet environments. LOW NOISEThe working sound of this dispenser is low to 40db.It will not bother you at all even at night..