A keypad door lock differs from a normal key lock in that it has a keypad, which is normally a numeric 10 digit keypad. A keypad door lock is programmed with a numeric code, and in order to unlock the keypad door lock, the correct code sequence must be entered on the keypad. Keypad door locks used to be quite expensive, and were used primarily to secure sensitive areas in business and government organizations. Today, with recent advances in technology these locks have become quite affordable, and increasingly popular for residential use.
- A keypad door lock is a bump proof lock – Lock bumping is a lock picking technique which can be used to open about 90% of doors in American homes. Most pin-tumbler locks used today are vulnerable to lock bumping, including front door locks. The technique of lock bumping is simple to learn, and using this technique a door can be opened in a matter of seconds. As lock bumping requires a key to be inserted into the lock, a keyless keypad door lock is not vulnerable to this growing threat.
- No keys to carry – With a keypad door lock, you don’t have any keys to lose, and you don’t have to worry about keys being stolen. Also there is one less key to add to the bulk of your keyring in your pocket.
- No need to get additional keys cut – If you want to give additional people access to your home, then you don’t need to get additional keys cut. Also if you have guests staying with you for a few days, you can give them the door keypad code – when your guests vacate, just reprogram a new code sequence for your keypad door lock.
The Schlage Plymouth Deadbolt Digital Keypad Lock is an easy to install keypad door lock to fit 1 3/8″ to 1 3/4″ thick doors, and is ready to install right out the box. Its easy to add and delete keypad codes for this lock, and up to 19 different four-digit codes can be created. The lighted keypad makes entering an entry code at night easy. When locked, the unit has a free-spinning keyway to prevent wrench attacks. It has a patented key override feature with 2 included keys, and meets the ANSI Grade 2 requirements. The unit has a three year battery life, with a low battery visual and audible warning. A 9-volt battery is included. This model Schlage deadbolt keypad lock comes in bright brass.
| Satin Nickel |
Aged Bronze |
Antique Brass |

Public service site about lock bumping. They provide information on how to protect yourself from lock bumping and lock bumping keys.
http://lockbumping.org