Smart Door Knob Fingerprint Lock 4-in-1 Keyless Entry (Fingerprint/App/Code/Key) Biometric Door with Auto-Lock Easy Install for Home/Bedroom/Office-Black

Price: $43.99
(as of Jul 16, 2026 06:40:06 UTC – Details)

Product description

Fingerprint

Store up to 100 fingerprints0.3-second identification speed APP Control

User managementAccess log monitoring Password

Secure access with customizableStore up to 100 passwordsAnti-peeping feature for added security Machine Key Unlock

Ensures you have a reliable alternative access methodAlways keep a backup key in accessible places

4in1 Smart Door Lock

1 Fingerprint 2 APP Control 3 Password 4 Mechanical Key

Comprehensive Security Suite Elevate Your Remote Experience Battery Level Monitor on App Monitor and Manage Battery Status through APP

Allows you to actively monitor the battery level of your smart lock, ensuring that it’s always in optimal working condition.

Security Lockout Protection Automatic Keypad Lockout After Multiple Incorrect Password Entries

As a security measure, the keypad will automatically lock for three minutes after eight consecutive unsuccessful password attempts.

Anti-peep Touchscreen Keypad Enhanced Privacy with Secure Password Entry

Randomized digit sequences shield your passcode from prying eyes, while the backlight enables effortless nighttime operation.

Emergency Unlock w/External Power Bank External Power Bank(Not Included)

Note: Type-C port is for unlock only; do not use for charging as it may damage the circuit board!

Control Remotely from Anywhere Paired with Tuya Gateway(Need to Buy Separately)
Control Remotely from Anywhere Paired with Tuya Gateway(Need to Buy Separately)
Control Remotely from Anywhere Paired with Tuya Gateway(Need to Buy Separately)
Control Remotely from Anywhere Paired with Tuya Gateway(Need to Buy Separately)

Why everyone fingerprint can open the door?

The smart door knob s initaly set to unlock with any fingerprnt.It needs to set up the adminstroer if not When no user information is entered, any fingerprint or card orpassword “12345” can be unlocked.

What Is the Type-C Port Used For?

This Type-C port is only for emergency use, like when the battery’s completely dead can connect a power bank to power it open the door. Don’t use it for regular charging , it could damage the inside of the lock or fry the motherboard.

How is the third-party ecosystem support for our lcok ?

It needs use with the gateway(needs to buy sparetely) then it supports Alexa and Google Voice Assistant forvoice lock/unlock commands, as well as remoteoperation via the mobile app.

What App is Used with this Fingerprint Door Lock?

It’s Tuya app.

【4-in-1 Keyless Entry Smart Door Knob】 Enjoy ultimate flexibility with 4 unlocking methods: fingerprint (99% recognition rate), Tuya app control, anti-peeping keypad, and 2 emergency keys. Perfect for families with kids/elders – store up to 100 fingerprints/codes/cards. No more fumbling for keys when carrying groceries or luggage!
【Military-Grade Local Data Storage】 Your biometric data stays 100% offline in the door handle’s encrypted chip – zero cloud vulnerabilities. Rest easy knowing hackers can’t access your fingerprint/password details, ideal for security-conscious homeowners.
【Silent Auto-Lock & Low Maintenance】 Auto-locks securely 5s after closing. Night owl friendly: Enable silent mode to avoid disturbances and use C-port emergency power when batteries run low .
【Easy Installation】 No drilling/wiring! Our fingerprint door handle fits 1.18″-1.97″ thick wooden doors (left/right swing). Comes with video tutorials and all tools – even tech novices can install it during a coffee break.
【0.5s Lightning-Fast Access】 Advanced biometric tech recognizes fingerprints in 0.5 seconds – faster than pulling out keys.

Product summary

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