Electronic Keyless Lock, Function Classroom with Key Override, Access Method Keypad, Mounting Style Mortise, Lock Material Zinc Alloy, Finish Brushed Chrome, Series Trilogy, Handle Type Lever, Door Thickness 1-3/8 in to 1-7/8 in, Key Override Options In.C In. Keyway (Included), Hand Right, Network Interface None, Outside Height 11 in, Outside Width 3 1/4 in, Outside Depth 3 in, Keypad Material Metal, Power Source (5) AA Batteries, Battery Life 100,000 Cycles