Prepare Your Door
Check that your euro-profile cylinder has a thumb turn on the interior side that sticks out at least 3mm past the door surface. The Smart Lock Pro mounts over this existing cylinder — you don't need to remove or replace it. If you're installing the Smart Lock Ultra instead, you'll swap the cylinder for the included Universal Cylinder.
Mount the Adapter Plate
Place the mounting adapter plate over the interior cylinder end. Align it with the thumb turn and secure it using the included adhesive strips or screws. The plate provides a stable base for the Smart Lock to clip onto.
Attach the Smart Lock
Clip the Smart Lock onto the mounting plate — it attaches magnetically and clicks into place. Make sure the motor engages with the cylinder thumb turn. The lock should sit flat against the door with no wobble.
Calibrate via the App
Open the Nuki app and follow the setup wizard. The lock will learn your door's lock and unlock positions by running the motor through a full cycle. This takes about 30 seconds. The calibration ensures smooth operation and prevents the motor from over-rotating.
Configure Connectivity
Choose your connectivity mode. For the best battery life, use Thread/Bluetooth only (~12 months). For remote access without a hub, enable WiFi (~6 months battery). If you have a Thread border router (Apple TV, HomePod, Google Nest Hub), Matter over Thread gives you the best of both worlds — remote access with minimal battery impact.
Set Up Auto Unlock (Optional)
Auto Unlock uses your phone's GPS to detect when you're approaching home. When you enter a geofenced area, the lock prepares. When you reach your door, it unlocks automatically. Enable it in the app under Settings → Auto Unlock. It works best when you consistently approach from the same direction.