Smart Door Knob,Blacksmith 4 in 1 Door Knob With Fingerprint & App Control & Password &Keys,Biometric Smart Door Lock for Home, Apartment, Office,Black 

The Blacksmith Smart Door Knob provides a keyless entry system with smart deadbolt functionality.This electronic door lock features a 4-in-1 unlocking system, including fingerprint recognition, app control, password and access with 2 traditional keys.The door knob is presented in a black color.Ideal for a variety of locations such as homes, apartments, offices, bedrooms, living rooms, and wardrobe spaces.A complimentary application allows for comprehensive control, enabling you to add fingerprints and passwords, review unlock records, and configure auto lock, passage mode, and privacy mode.The app's bluetooth control range is approximately 5 meters.The biometric smart lock swiftly recognizes fingerprints in just 0.3 seconds.It supports the storage of up to 100 unique fingerprints.The system offers 50 access codes that can be shared with family members for convenient entry.A built-in sensor detects when the door is closed and automatically engages the lock for enhanced security.The auto-locking feature allows you to set a specific duration, such as 5 seconds, for the door to lock automatically after entry.Designed for effortless installation, requiring only a screwdriver and minutes to set up.This smart door knob is compatible with most standard US doors.Constructed from durable metal material.Assembled product dimensions are 2.36 inches in height, 2.75 inches in length, and 2.36 inches in width.