Electronic Keyless Lock Function Office Access Method Keypad Mounting Style Cylindrical Lock Material Metal Finish Satin Chrome Series CO200 Handle Type Lever Door Thickness 1-3/4 In. Key Override Options Schlage Interchangeable Core Hand Field Reversible Outside Height 9-15/32 In. Outside Width 3-29/64 In. Outside Depth 3-43/64 In. Keypad Material Rubber Power Source (4) AA Batteries Battery Life 1 to 2 yr. Operating Temp Range -31 Degrees to 151 Degrees F