Electronic Keyless Lock; Function Auxiliary; Access Method Keypad; Mounting Style Cylindrical; Lock Material Solid Cast; Finish Satin Chrome; Series E1500; Handle Type Thumb Turn; Door Thickness 1-5/8 in to 2 in; Key Override Options 1539 6 Pin Cylinder; Schlage In.C In. Keyway; Hand Nonhanded; Outside Height 5 3/4 in; Outside Width 2 3/4 in; Outside Depth 1 25/32 in; Keypad Material Metal; Power Source (3) AA Batteries; Battery Life Up to 100;000 Cycles