Electronic Keyless Lock Function Entry with Key Override Access Method Keypad Mounting Style Cylindrical Lock Material Solid Cast Finish Satin Chrome Series E2000 Handle Type Lever Door Thickness 1-3/8 in to 2-1/2 in Key Override Options Best and Equivalents Hand Nonhanded Outside Height 8 15/16 in Outside Width 3 5/16 in Outside Depth 2 3/16 in Keypad Material Solid Metal Power Source (3) AA Batteries Battery Life Up to 100 000 Cycles