The electronic deadbolt from Tough Guard has been designed with maximum security in mind. Manufactured with the toughest materials for added strength, it is also equipped with Bump protection to prevent break-ins from lock bumping and features a failed attempts alarm to discourage tampering. This modern looking lock with its LED backlit touch screen keypad will fit all standard door preparations, comes in three finishes and allows for multiple users with 50 programmable user codes. Requires installation and 4 AA Batteries, (not included). This lock can also be adjusted for right or left hand door applications and comes with 2 keys.