Kwikset Keypad Electronic Lock, Transitional Design, 3 Grade, Battery Power Source, 1 -Cylinder, Deadbolt Cylinder, KW1 Keyway, Re-Key Technology: SmartKey, Adjustable Backset, Adjustable Latch, 2-1/8 in Cross Bore Diameter, 1 in Edge Bore Diameter, Projection: 0.969 in, 1-3/8 to 1-3/4 in Door Thickness, Turn-Piece Interior Locking, Door Handing: Universal, 25 User Codes, Residential Commercial/Residential, Alarm: Audible, Keypad Included: Yes, Lighted Keypad: Yes, Biometric Lock: No, Zinc, Satin Nickel, Includes: Lock, Latch, Strike, Hardware, Key and InstructionsKeyless entry: makes coming and going secure and convenientEasy code management: 12 user codes and 2 one-time user codesAuto-lock: peace of mind with customizable, automatic lockingIntrusion alert: 3 wrong codes disable keypad and sound alarmEasy low light code entry: bright led light up keypadVacation mode: disable the keypad when you’re out of townFeaturing smart key security: re-key the lock yourself in seconds.12-month battery life: 4X AA alkaline batteries (not included)Easy install and built app: easily install with screwdriver