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

The WELOCK U81 is designed for compatible Euro profile cylinder doors. It fits door thicknesses from 60–115 mm and is suitable for doors with a minimum door backset of 25 mm. Before ordering, please check your door thickness, backset and the available space around the cylinder. If you're unsure, use our Compatibility Check or contact our support team for assistance.

Yes. The U81 replaces your existing Euro profile cylinder without drilling or wiring. Most compatible doors can be upgraded in around 10 minutes using basic tools.

The U81 works locally with fingerprint, PIN, RFID card, Bluetooth and the mechanical key. Add WiFiBox3 only if you want remote unlocking, notifications, access records or smart home integration.

The U81 provides a low-battery warning before the batteries are depleted. If power runs out completely, you can still unlock the door using the included mechanical key.

Absolutely yes! The U81 uses encrypted Bluetooth communication for local access. Remote features are available through WiFiBox3 while local unlocking continues to work even without an internet connection.

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

Yes. The U81 includes a mechanical backup key, allowing you to unlock the door even if the batteries are depleted or your phone isn't available.

Yes. Fingerprint, PIN code, RFID card, Bluetooth and the mechanical key all work without an internet connection. WiFiBox3 is only required for remote control and smart home features.

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