The Bobrick B-8263 is an automatic foaming hand soap dispenser. The touch-free sensor detects the user's hand to automatically dispense a controlled amount of soap; the activation range is 4" from the sensor lens. The bright-polished chrome spout cover dispenses 1000 handwashes per 800ml or 2000 handwashes per 1600ml OneShot soap refills. It requires 4 D Cell batteries (not included). Maximum countertop mounting thickness is 2" and contains a spacer for use with a sink rim 3/4" or greater.