Electronic Keyless Deadbolt Lock Function Entry with Key Override Access Method Keypad Mounting Style Mortise Lock Material Zinc Finish Satin Chrome Series E2000 Handle Type Lever Door Thickness 1-3/4 in to 2-1/8 in Key Override Options Schlage inC in Keyway (Included) Hand Field Reversible Outside Height 8 15/16 in Outside Width 3 5/16 in Outside Depth 2 13/16 in Power Source (3) AA Batteries Battery Life 100 000 Cycles Operating Temp Range -31 Degrees to 151 Degrees F