Question about Nuki Smart Lock PRO (5th Gen) CH cylinder

For a Kaba lock that cannot be opened with the duplicate key card, there is no direct solution for the Nuki Smart Lock PRO (5th Gen) CH cylinder without changing the cylinder. The Nuki Smart Lock is basically compatible with many common cylinders, including Dormakaba, but a special adapter is required for knob cylinders, which serves as a connecting piece between the knob cylinder and Smart Lock.

If your lock has a knob cylinder, the matching Nuki adapter for Dormakaba (Kaba) can be used to attach the Smart Lock. However, with special lock mechanisms, such as yours with the double key card, it is often necessary to change the cylinder, as the Smart Lock is dependent on the cylinder mechanism and there is no solution without replacing the cylinder.

To summarise: Without changing the cylinder, there is no known solution to using the Nuki Smart Lock with a Kaba lock that cannot be opened with the duplicate key card. Changing the cylinder to a compatible type is the recommended procedure. A specialist can check whether an adapter and the existing cylinder work together or whether a replacement is necessary.