Listed as a WDL-X1 Wi-Fi fingerprint door lock with password, card and mechanical-key access. The manufacturer model information describes Wi-Fi connectivity; confirm the supported app, account, pairing requirements and supplied revision.
The original listing requires checking a mortise with the stated double length of 50 × 50 before purchase. Confirm this requirement against your door and the supplied installation instructions; it does not establish compatibility with every door.
The listing describes battery power, USB backup power and mechanical-key access. Confirm the battery size, emergency-power arrangement and installation instructions for the supplied lock. Public documents for this model have conflicting battery and dimension information across versions.
Language, unlock-mode, voice and timer settings are described in the listing; confirm which functions are supported by the supplied firmware.