Provides exterior access by combination while allowing free egressNumeric Keypad is vandal resistant with solid metal pushbuttonsNo Battery, Fully mechanical lock eliminates the material and labor expense of battery replacementsEasy-to-manage single access code for all usersLock is easily programmed via keypad without removing lock from the doorLocking Device, Cylindrical latch with 3-hour UL/ULC fire rating on A-labeled doorsOperation Mode, Pushbutton AccessMust specify Latch and Backset when orderingAvailable with Cylindrical 1/2" throw latch floating face plate w/ 2-3/4" backset UL Listed, Cylindrical 1/2" throw latch floating face plate w/ 2-3/8" backset UL Listed, or Cylindrical 3/4" throw latch beveled face plate with 2-3/4" backset UL ListedDoor Preparation, Easily installs on wood or metal doors. ASA 161 door preparation with additional through bore holes required