16 Keys Membrane Switch,Control panel keypad,metal numeric keypad,membrane keypad,atm ... Keycaps: 304# Stainless steel· Back plate: Aluminum alloyMechanical· IP65 (View certification)· NEMA4, IK7· Key stroke travel: 0.45mm· Key actuation ... Laser burnt lettering· Extended warrantyRelated ProductsKY2101KY2188BKY3088A Membrane Switch,Control panel keypad,metal numeric keypad,membrane keypad,atm keypad