The Samsung SHS-P718 has all of the top of the line features available including fingerprint entry and our new patented hardware designs. A new install can be completed on a 40-60mm thick door with a minimum of a 115mm lock stile. This lock is universally handed for left or right handed installations. If you or a loved one has ever been locked out of the house, going keyless is a simple decision. No more keys to hide, or get cut and copied. Use your finger to open the door, with our 100 user capacity fingerprint sensor. Giving access to trades, guests, or friends has never been easier. It's 30 user capacity allows you to register multiple users each with their own code or Samsung KeyTag or SmartTag. Automatic locking allows you to feel secure whenever you leave the house by locking behind you whenever you go out. This can also be set to manual if you're in and out of the house frequently. Our products come complete in the box with all of the parts you'll need including 8 AA batteries, 2 Samsung KeyTags, and 5 mechanical backup keys to register.