spark Fingerprint Door Lock, Smart Fingerprint Door Knob with Keypad, Biometric Door knobs with App Control Electronic Lock  (black)

4-in-1 Unlocking System: Experience convenience with our smart door knob featuring four unlocking methods: fingerprint recognition (20 users), personalized passwords (20 users), app Bluetooth control (gateway required for remote access), and backup keys. Enjoy automatic locking, passage mode, private mode, and an anti-peep keypad for enhanced security. Comprehensive App Features: Our keypad door knob allows for seamless user management through the app. Easily share access, add members, manage fingerprints and passwords, and create permanent or temporary access codes for family members, guests, deliveries, or housekeepers. Set silent mode for undisturbed sleep, enable passage mode for continuous access, and view historical logs effortlessly for complete control and convenience. Effortless Installation and Reliable Support: Designed to fit most American doors, our fingerprint door lock is easy to install. Enjoy peace of mind with our 1-year Technical Support, making it an ideal choice for bedroom door, side door or study room. For any queries, contact us for technical support within 24 hours, ensuring you receive timely assistance and satisfaction. Powerful and Emergency Charging: Equipped with a 400mAh rechargeable battery, this biometric door lock offers up to 1 year of battery life. The Type C to USB-A port ensures easy and fast recharging, while the backup key provides security in emergency situations. Stay prepared and maintain security with reliable power options.When to Charge: For optimal performance, charge the lock promptly when the low battery indicator appears. Don’t wait until the battery is fully out of power and the lock is inoperable. Enhanced Privacy and Security: Your personal information is secure with local storage of fingerprints and app data, ensuring it is not uploaded to the cloud. This fingerprint door knob offers multiple security, making it convenient for smart homes, apartments, offices, bedrooms, and garages. Enjoy privacy and peace of mind with our security features.