Smart Fingerprint Door Knob with Keypad, Fingerprint Door Lock, Keyless Entry Door Lock, Biometric

Описание: In this video, I’m taking a hands-on look at a *4-in-1 Smart Door Knob* that brings modern smart-home security to interior and exterior doors. This smart door lock combines **fingerprint recognition, keypad passcodes, app control, and traditional backup keys**, making it a versatile and convenient upgrade for bedrooms, home offices, side doors, apartments, garages, and more.

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What makes this smart door knob stand out is the flexibility. It supports **up to 50 fingerprints and 50 passcodes**, allowing you to easily manage access for family members, guests, renters, cleaners, or delivery drivers. Whether you prefer biometric access, a personalized PIN, or smartphone control, this lock adapts to your needs.

Key Features Covered in This Video:

4-in-1 Unlocking Methods
• Fingerprint recognition with fast response
• Personalized keypad passwords
• Smartphone APP control
• Physical backup keys for emergencies

Advanced Smart Lock Modes
• Automatic locking for added security
• Passage Mode for continuous access
• Privacy Mode to restrict entry when needed
• Anti-peep keypad function to prevent code theft

APP Control & Access Management
Using the mobile app, you can manage fingerprints and passcodes anytime. Create *permanent or temporary access codes* for short-term visitors, housekeepers, or service providers. Monitor access activity with *entry history logs**, control permissions remotely, and enable **Silent Mode* to avoid disturbances at night.

Emergency & Power Backup Features
This biometric door lock runs on batteries (not included) and includes a *low-battery alert* so you’re never caught off guard. If power runs low, you can use *Type-C fast charging* for temporary power or unlock the door with the **backup key**, ensuring reliable access in all situations.

Easy Installation for DIYers
Designed to fit most **American standard doors**, this smart door knob installs quickly with basic tools—no hard wiring required. It’s a great DIY upgrade for homeowners, renters (with permission), or anyone wanting smarter security without replacing the entire lock system.

Privacy & Data Security
All fingerprint and app data is stored **locally**, helping protect your personal information from leaks. Multiple security layers ensure safe operation in smart homes, offices, apartments, and private spaces where privacy matters most.

Ideal Uses for This Smart Door Knob:
• Bedroom doors
• Home offices
• Apartment entry doors
• Side or garage doors
• Rental properties and Airbnbs
• Offices and shared spaces

If you’re looking for a **smart door lock with fingerprint access**, keypad entry, and app control—without complicated installation—this 4-in-1 smart door knob is a solid option. In this video, I walk through features, setup, and real-world usability so you can decide if it’s right for your home.

If you found this video helpful, please like, subscribe, and drop a comment below. Let me know if you’d like to see a full installation walkthrough, app setup tutorial, or comparison with other smart locks.

Thanks for watching and happy DIY upgrading!

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