Electronic Keyless Lock Function Entry with Key Override Access Method Keypad Mounting Style Cylindrical Lock Material Solid Cast Finish Satin Chrome Series E5000 Handle Type Lever Door Thickness 1-3/8 in to 2-1/4 in Key Override Options Schlage Interchangeable Core Hand Nonhanded Outside Height 8 7/8 in Outside Width 3 3/8 in Outside Depth 3 13/16 in Keypad Material Solid Metal Power Source (4) AA Batteries Battery Life Up to180 000 Cycles