DESLOC D212 Smart Fingerprint Door Knob Lock with Wi-Fi and Auto-Lock

Fingerprint access lets you unlock the door with a touch, while keypad, app, and mechanical-key options give household members and guests more than one way to enter.

Built-in Wi-Fi connects the D212 to app controls for locking, unlocking, activity records, temporary passcodes, and user permissions. It also works with amazon Alexa and Google Assistant.

Need to manage access for roommates or visitors without handing out a key? Create passcodes for different users and set auto-lock to engage after a chosen interval.

Tips for day-to-day use

Set up fingerprint access for regular users and use passcodes when you need to share entry with a guest, cleaner, or tenant. The lock supports up to 50 fingerprints and 100 passcodes, so it can accommodate multiple people and different access needs. Temporary or scheduled codes offer a practical alternative to sharing a permanent credential.

In the app, you can review activity records, adjust user permissions, and lock or unlock the door remotely. Low-battery alerts appear in the app and on the lock, if the batteries run out, the USB-C emergency charging port can provide temporary power to regain access. The included mechanical keys provide another way to unlock.

The knob is designed for most standard interior and exterior side-entry doors. Installation uses basic household tools, making it a convenient way to add keypad and fingerprint access to a bedroom, home office, apartment, or similar personal space. Buyers often praise the straightforward installation and everyday fingerprint access, while feedback on the instructions is mixed.

Key specifications

• Type: Smart door knob lock with fingerprint reader and keypad
• Model: D212
• Connectivity: Built-in Wi-Fi, Bluetooth
• Access methods: Fingerprint, passcode, app, mechanical key
• Material: Aluminum alloy body with tempered-glass keypad
• Color: Black
• Auto-lock: Adjustable from 5 to 120 seconds
• Dimensions: 6.22 x 2.95 x 1.08 inches
• Compatibility: Amazon Alexa and Google Assistant

Where it shines

The D212 suits spaces where access needs to be convenient but still managed by person: a busy household, shared apartment, guest room, or private office. Fingerprint entry provides a key-free option for everyday users, while passcodes make it easier to grant temporary or scheduled access. App controls add a way to manage permissions and view activity without handling keys in person.

Its aluminum alloy body and tempered-glass keypad give the lock a modern finish, and the keypad is backlit for use when lighting is low. Auto-lock can help make locking the door part of the routine after entry. The lock is rated IPX4 and to BHMA Grade 3 standards, adding documented weather-resistance and performance details for everyday use.

Compared with a basic keyed knob, this model combines biometric entry, passcodes, and connected controls in one lock. That combination is especially useful when several people need access or when guest codes are preferable to distributing physical keys.

Questions before you buy

How many fingerprints and passcodes can the lock store? It supports up to 50 fingerprints and 100 passcodes, giving households and shared spaces room to set up access for multiple users.

Can I create a code for a visitor? Yes. Temporary or scheduled passcodes can be created for visitors, cleaners, or tenants, so you can manage access without sharing a physical key.

What happens if the batteries run low? The lock provides low-battery alerts through the app and on the device. If the batteries are depleted, use the USB-C emergency charging port to power the lock temporarily and regain access.

Buying verdict

For a bedroom, apartment, home office, or side-entry door, the DESLOC D212 brings fingerprint entry, flexible passcodes, app-based access management, and auto-lock together in a single knob. It’s a practical fit for people who want keyless entry for everyday users and an easier way to manage access for guests.