Fingerprint Smart Door Knob with Key Backup, 35-55 mm Doors

Access built into the knob.

A new door handle can look right yet leave the latch poorly aligned if the measurements do not match. This rounded fingerprint door knob combines an outer reader with an indoor turning control, bringing the access hardware into one compact layout for a correctly fitted door.

• Stated door-thickness range: 35-55 mm.
• Adjustable latch setting: 60 or 70 mm.
• Key backup provides an alternative access method.
• Emergency power connection offers an additional operating provision.

Compare the supplied installation requirements with your actual door before ordering. Follow the registration and power guidance, keep backup keys available, and check that the latch and turning control operate smoothly after installation.

FAQ

Does it fit every door? No universal fit is confirmed. The listed measurements are compatibility checks, not a guarantee for every door design.

Does it support an app, Wi-Fi, or remote unlocking? These functions are not currently documented. Do not assume connectivity from the smart-lock name.

Which finishes are available? Black and Silver.

Check the fit. Choose your finish.