16 Keys Membrane Switch,Control panel keypad,metal numeric keypad,membrane keypad, ... Operation temperature: -10°C to +50°C, can be extended to -40°C to +80°C · Storage temperature: -40°C to +80°C · Relative humidity: ... operation temperature· Laser burnt lettering· Extended warrantyRelated ProductsKY2101KY2188BKY3088A Membrane Switch,Control panel keypad,metal numeric keypad,membrane keypad,atm keypad