Electronic Keyless Lock Function Office with Key Override Access Method Keypad Mounting Style Cylindrical Lock Material Zinc Alloy Finish Satin Chrome Series DL2700 Handle Type Lever Door Thickness 1-5/8 in to 1-7/8 in Key Override Options Small Format Interchangeable Core Hand Nonhanded Outside Height 8 in Outside Width 3 1/4 in Power Source (5) AA Batteries Battery Life 120 000 Cycles Operating Temp Range -31 Degrees to 151 Degrees F Max User Codes 100 Fire Rating 3 hr