Smart Lock Cylinders for Euro Profile Doors

WELOCK electronic lock cylinders replace the existing Euro profile cylinder and, depending on the model, allow keyless access by fingerprint, PIN code, RFID card, Bluetooth or app.

Unlocking Technologies from WELOCK

WELOCK smart locks offer multiple ways to unlock your door, manage access and stay connected.

Fingerprint Access

Bank-grade biometric security for fast and reliable keyless entry.

Keypad and PIN code access

Keyless entry using a personal PIN directly on the keypad.

Remote Control

Remote control and integration with Alexa and Home Assistant through WiFiBox3.

RFID Card Unlock

Contactless unlocking with a registered RFID card held near the lock’s reader.

Bluetooth App Access

Local unlocking and access management through the WELOCK app when you are near the door.

Backup Unlock

Emergency access using Type-C USB power or a mechanical backup key when the batteries are depleted.

Why Upgrade to a WELOCK Electronic Lock Cylinder?

Keyless Convenience

Unlock instantly via biometric fingerprint, PIN code, RFID smart card, or your smartphone App—no more heavy keychains.

10-Minute Easy Retrofit

Designed for standard Euro-profile doors with an adjustable telescopic cylinder. No drilling or wiring required—tenant-friendly.

Bank-Grade Security

Features AES encryption and anti-peeping PIN tech to fully protect against digital hacking and unauthorized access.

Flexible Guest Access

Effortlessly generate time-limited codes or digital code for Airbnb guests, cleaning staff, or delivery workers via the app.

Remote Control

View a real-time audit trail on your phone to see exactly who entered your home or office and when.

Ultra-Long Battery Life

One set of batteries lasts 8–10 months. Features low-battery alerts and an emergency USB power port so you are locked out.

Home & Apartment

Home & Apartment

For homes and apartments with Euro profile doors. Upgrade your existing lock cylinder for everyday keyless access without replacing the whole door or lock hardware. Choose fingerprint, RFID, PIN code, or app access depending on the model.

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Small Office & Business

Small Office & Business

For small offices, studios or team spaces that need shared access. Choose keypad, RFID or app-supported models when several people need to unlock the same door.

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Rental & Holiday Apartment

Rental & Holiday Apartment

For rental or holiday apartment use, choose models with PIN code, temporary password or remote access. Always check the model features before using it for guest access.

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Door Compatibility and Measurements
Step 1: Check the Cylinder Type

Make sure your door uses a Euro profile cylinder. WELOCK cylinders are not designed for every lock or door type.

Step 2: Measure the Door Thickness

Measure the total door thickness from the outer surface of one escutcheon to the outer surface of the other.

Step 3: Measure the Door Backset

Measure the distance from the edge of the door to the centre of the cylinder.

FAQs about electronic lock cylinders

An electronic lock cylinder replaces the mechanical cylinder in a compatible Euro profile door. It allows the door to be unlocked without a traditional key, using a fingerprint, PIN code, RFID card, Bluetooth, or the WELOCK app, depending on the model.

The main door and locking mechanism remain in place. For remote access and Alexa and Home Assistant integration, a compatible WELOCK WiFiBox3 is required.

A smart lock cylinder replaces the existing lock cylinder. Many other smart locks are mounted on the inside of the door or replace other lock parts. WELOCK focuses on electronic lock cylinders for Euro profile doors.

Not always. For local use by fingerprint, RFID, Bluetooth or nearby app access, WiFi is not always required. For remote control, Alexa or Home Assistant, a compatible WELOCK WiFiBox is required.

If fingerprint access is your main need, models such as U81, Touch41, or ToucA51 may be suitable. Also check door thickness and whether you need extra functions such as RFID, app access or keypad.

It depends on the model. For rental use, models such as U81, ToucA51 Pro with PIN code, temporary password or remote access are usually more suitable. Check the model functions before buying.

WELOCK models with USB emergency opening can be opened with a power bank in an emergency. The USB port is for emergency opening, not for charging the batteries.

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