Ultra Security Plus, 43338, Satin Nickel, Keyless Electronic Deadbolt Locking System Push Button Lockset, Single Cylinder. Fits standard 2-1/8" installation hole. 2 Way adjustable backset. Battery operated - 4 AA Alkaline or Lithium batteries (not included). 2 Remote Controls Included. Easy Installation - only a Phillips screwdriver needed. Tarnish resistant finish. Easy to program and change codes. Emergency key override. Illuminated key pad. Security programmer code. Audible / visual alarm. Radio frequency remote - works up to 90 feet away. Auto lock feature can be turned off or set for 30 seconds to 5 minutes delay. Create temporary access codes for service people, baby sitters & guests. No Keys Required! No Wiring Necessary. Replaces Existing Home Hardware. 2 Remote Control Fobs Included. 3 Access Options: Key, Remote & Key Pad.