Samsung SHS-H705-FMK Biometric Digital Door Lock, Fingerprint with Small Mortise (AML-220) DETAILS  Program up to 11 user codes and 100 fingerprints. Fits doors 40mm to 80mm thick. Automatic locking. Child proof interior handle. Handle levers are adjustable can be flipped to either the left or right side. Battery operated with emergency power contact. DESIGN  Samsung door locks have a sleek modern design which would complement any interior or exterior door in the residential home, apartment, or commercial business office building. EASY TO USE  Use the digital touchscreen numeric keypad or fingerprint reader to enter a password or fingerprint faster than you can turn a key. Shut the door and the mortise sensor auto locks the door for you. MORTISE  Sturdier and more durable than cylindrical deadbolt locks but do require door modification. The mortise is electronic for faster open/close and has the added security of a latch. SECURITY  Rigorously tested construction, random security code feature, bump and pick proof, intrusion alarm, PSB fire tested and fire detection sensor, anti tampering lock out. The lock has your back.