Electronic Keyless Lock Function Entry with Key Override Access Method Keypad Mounting Style Yale Exit Devices Lock Material Zinc Alloy Finish Brushed Chrome Series Trilogy Handle Type Lever Key Override Options Schlage inC in Keyway (Included) Hand Nonhanded Network Interface None Outside Height 11 in Outside Width 3 1/4 in Outside Depth 3 in Keypad Material Metal Power Source (5) AA Batteries Battery Life 100 000 Cycles Operating Temp Range -31 Degrees to 151 Degrees F