Electronic Keyless Lock, Function Entry, Access Method Keypad, Mounting Style Mortise, Lock Material Solid Cast, Finish Satin Chrome, Series E2000, Handle Type Lever, Door Thickness 1-3/4 In. to 2-1/4 In, Key Override Options None, 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, Operating Temp. Range -31 Degrees to 151 Degrees F Indoor/Outdoor Approved. NULL