Electronic Keyless Deadbolt Lock Function Entry Access Method Keypad Mounting Style Mortise Lock Material Zinc Finish Satin Brass Series E2000 Handle Type Lever Door Thickness 1-3/4 in to 2-1/8 in Key Override Options None 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 Max User Codes 100 Fire Rating Yes Grade 1