Electronic Keyless Lock,Push Button

Electronic Keyless Lock, Function Entry with Key Override, Access Method Keypad, Mounting Style Cylindrical, Lock Material Metal, Finish Satin Chrome, Series NTB600, Handle Type Lever, Door Thickness 1-3/4 in, Key Override Options Mechanical, Hand Nonhanded, Network Interface None, Outside Height 8 1/8 in, Outside Width 3 3/4 in, Outside Depth 3 5/16 in, Keypad Material Membrane, Power Source (4) AA Batteries, Battery Life 20,000 Cycles, Operating Temp. Range -40 Degrees to 140 Degrees F