Electronic Keyless Lock, Function Entry with Key Override and Privacy, 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 In.C In. Keyway (Included), 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