MiLocks DKK-02AQ Electronic Touchpad Entry Keyless Door Lock, Antique Brass Keyless door lock with electronic touchpad keypad entry Direct replacement for standard door knobs Add up to 6 user passcodes Adjustable latch: 2-3/8-Inch (60mm) or 2-3/4-Inch (70mm) 25 year Mechanical Warranty - 1 year Electrical Warranty - Lifetime Finish Warranty.Min. Door Thickness:1.25 inch