Maintain a secure entryway into the home with this electronic lock by Weiser, which offers keyed access and entry via numeric password. Store up to six separate access codes plus a master code to provide secure access to friends and family. The illuminated keypad makes numbers easier to see at night. An included pair of keys provides a back-up entry option. SmartKey technology allows for quick and easy rekeying in just three steps. The Powerbolt lock is battery powered and requires no wiring. It uses 4 AA batteries (available separately). The lock engages automatically after 30 seconds and 5 incorrect code entries trigger an alarm.