Smart lock selection guide for European door compatibility

When selecting smart locks for European doors, compatibility with existing hardware is a critical factor. Unlike American deadbolt systems, European doors frequently utilize euro cylinder locks, which are characterized by an elongated shape and a securing screw located on the edge of the door.

To ensure proper installation, users must verify the type of current lock, the length of the cylinder (measuring both inward and outward from the center of the fixing screw), the thickness of the door, and the space available around the handle and shield. It is also important to determine if the door uses multi-point locking.

One specific option mentioned is the WELOCK U81 smart lock, designed for European door compatibility. It offers keyless entry via PIN, fingerprints, cards, or mobile applications.