Question about Nuki Smart Lock 3.0 Pro CH cylinder

Mounting is actually not difficult, choose Nuki model for correct cylinder (CH cylinders are round). When the Nuki is mounted, the key is always inside the lock. It depends on the cylinder type whether you can insert and turn a key on the outside. Some cylinders support this, others do not. You should try this out in advance. If you have two keys at hand, simply insert them inside and outside at the same time. If the key turns both inside and outside, everything is OK.