LockeyUSA 1600DC Oil Rubbed Bronze Heavy Duty Mechanical Push Button Digital Door Lock, Keypad with Knob on Exterior & Keypad with Knob on Interior, Passage Function, Double Combination, 1 User Code, Weather Resistant, Commercial Lock, Compatible with GB1150 Steel or Aluminum Gate Box, Easy Install, Covers 2-1/8? Door Prep, Door Thickness: 1-1/8? to 2? Standard, Fits Doors 2? to 5? with Extension Kit, Changeable Handing, Adjustable Backset: 2-3/8? or 2-3/4?, Lifetime Mechanical Warranty