Smart lock provides 3 unlocking options: fingerprint, app, and key unlock. Its fast 3D fingerprint sensor can store up to 20 different fingerprints and unlock them in just 1 second, allowing you and your family to enter and exit easily. With the smart lock, you can manage all users and fingerprints, set automatic locks, and view access records to ensure your home security. It has a passage mode and a secure mode. The fingerprint door lock looks like a standard door handle, and its simple design fits your style and most doors. It can be easily installed with a long and thin screwdriver and 2 screws, without the need for additional drilling and hiring a locksmith.