The Morning Industry Inc HF-01AQ Touchpad Electronic Dead Bolt offers a durable, reliable and powerfully performing locking mechanism that helps to ensure a high degree of security and safety. This antique brass deadbolt comes equipped with both a standard lock-and-key access mechanism and a touchpad key pad that allows for keyless unlocking and entry, allowing for enhanced convenience. Up to six different codes can be inputted using anywhere from two to eight digits per code, and each code can be added or deleted individually for quick and efficient adding and removal of different lock users. Additionally, this door lock deadbolt can be installed with no wiring and no drilling necessary, and is capable of fitting any standard door prep model, making it quick and easy to install and to begin using. Bump-resistant key cylinders prevent lockpicking by requiring full and simultaneous pressure to unlock, enhancing security. The adjustable latch fits both 2.38" and 2.75" back sets.