WELOCK U81 Electronic Door Lock Cylinder

Name: WELOCK U81 Smart Lock Cylinder with Fingerprint, PIN & Key
Brand: WELOCK
SKU: Core1KEY81
Price: 249.0 EUR
Availability: InStock
Rating: 5 (13 reviews)

WELOCK Smart Lock U81 Electronic Door Lock Cylinder - WELOCK

€249,00

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Free Automatic 3-year Warranty Extension Offer $0.00 Purchases directly from our Official Website will receive an auto-extension.

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PRODUCT MODEL

U81

U81+WIFIBOX3

Lock cylinder

Euro Profile

Ships free from Europe & UK warehouses

In stock, ready to ship
Inventory on the way

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1. 6 Ways to Unlock
Unlock with a fingerprint, PIN code, RFID card, Bluetooth, WELOCK app, mechanical key, or Alexa (via WiFiBox3) for flexible keyless access at home, rentals, or the office.
2. Designed for Narrow Euro Profile Doors
Fits compatible Euro-profile cylinder doors with door backsets from 25 mm, making installation possible where many smart cylinders won't fit.
3. Remote Control & Smart Home
Pair with WiFiBox3 for remote unlocking, access records, notifications, and smart home integration with Home Assistant and Alexa.
4. Automatic Locking
Automatically locks after closing with an adjustable 7–14 second delay for added everyday convenience.
5. Built for Everyday Use
Powered by 4 AAA batteries with up to 12 months of battery life. Tested for 100,000 operating cycles and includes a low-battery reminder.

Specifications

Learn More

Ships free from Europe & UK warehouses

30-Day Money-Back Guarantee

2 years Hassle-Free Warranty

Lifetime Customer Support

U81 Smart Lock installieren | Schritt-für-Schritt-Anleitung

WELOCK U81 Smart Lock Installation Guide

WELOCK U81 Smart Lock | 6 Ways to Unlock

How to install WELOCK smart lock U81

WELOCK U81 Smart Cylinder makes your lock smarter

Upgrade Your Existing Euro Cylinder

Replace your existing Euro profile cylinder in just a few simple steps—without drilling, wiring, or replacing your door.

Designed for compatible doors with door backsets from 25 mm, the WELOCK U81 fits many European doors where installation space is limited, making it an easy smart lock upgrade for everyday use.

Remote Control with WiFiBox3

Pair your WELOCK U81 with WiFiBox3 to control your smart lock from anywhere. Unlock the door remotely, share access with family or guests, receive real-time notifications and check access records in the WELOCK App. WiFiBox3 also enables smart home integration with Alexa and Home Assistant for even greater convenience.

WELOCK U81 smart cylinder mechanical key backup

Share Access with Family & Guests

Give secure access to the people you trust without making extra keys. Create PIN codes or authorize fingerprints for family members, guests, cleaners, or service providers. Whether it's everyday use or temporary access, the U81 helps you manage your home with greater flexibility.

Mechanical Key Backup for Peace of Mind

Even if the batteries run low or your phone isn't available, you're never locked out. The included mechanical key provides reliable emergency access whenever you need it, giving you extra confidence every day.

Protect Your PIN with Anti-Peep Technology

Enter random numbers before or after your correct PIN to help prevent others from guessing your password. Combined with automatic lock protection after repeated incorrect attempts, the U81 helps keep your home and your personal access codes secure.

WELOCK U81 User Manuals

U81 User Manual DE
U81 User Manual EN
U81 User Manual IT
U81 User Manual FR
U81 User Manual ES

FAQs

Yes, the U81 is compatible with most EU and UK standard doors (Euro profile cylinder). It fits door thicknesses of 60–115 mm and includes spacers for 50–90 mm installation.

Powered by 4 AAA batteries (not included), the smart lock lasts up to 10–12 months under typical use. A low battery alert will notify you when it’s time to replace them.

No, the WELOCK Smart Door Lock U81 does not require a WiFi bridge to function. It operates independently using its built-in features, including fingerprint recognition and password entry. However, if you want to control your door lock remotely via the WELOCK app or use voice control with Amazon Alexa, you will need a WIFIBOX3 bridge to connect the lock to your home network.

While smart door locks offer enhanced security measures that surpass traditional locks, no system is fully immune to hackers. To improve the security of your smart door lock, select models like WELOCK smart lock cylinders that use bank-grade encryption. Use strong, unique passwords for your lock's settings and secure your home Wi-Fi network to prevent unauthorized access.

Absolutely! The WELOCK U81 is designed for easy DIY installation with no drilling or wiring required. A step-by-step guide and tools are included.

Yes. It can be downloaded and updated completely free. The app is available for Android and iOS smartphones. Learn more details

WELOCK U81 Smart Lock Cylinder with Fingerprint, PIN & Key

Specifications

WELOCK U81 Smart Cylinder makes your lock smarter

WELOCK U81 User Manuals

U81 User Manual DEU81 User Manual ENU81 User Manual ITU81 User Manual FRU81 User Manual ES

U81 User Manual DE
U81 User Manual EN
U81 User Manual IT
U81 User Manual FR
U81 User Manual ES