Description Electronic Keyless Lock, Function Entry and Egress with Key Override, Access Method Keypad, Mounting Style Cylindrical, Lock Material Zinc Alloy, Finish Satin Chrome, Series DL5200, Handle Type Lever, Door Thickness 1-3/4 in, Hand Nonhanded, Outside Height 8 in, Outside Width 3 1/4 in, Outside Depth 3 1/2 in, Keypad Material Metal, Power Source (5) AA Batteries, Battery Life 80,000 Cycles, Operating Temp. Range -31 Degrees to 151 Degrees F, Max. User Codes 100, Fire Rating 3 hr, Grade 1 Finish Satin Chrome Includes (5) AA Batteries Standards BHMA Grade 1, UL Listed Series DL5200