MEASURE THE CYLINDER

OUTSIDE
To determine which size cylinder(s) you need, you must first take the measurements. You measure the outside size from the locking screw (of the cylinder) to the outside of the fitting. A cylinder should never protrude more than 3 mm on the outside of the door fitting. Note this size (outside).

INSIDE
You also do this for the inside, but the cylinder may protrude from the fitting if desired. If you want a cylinder for a Nuki Smart lock, you must add at least 2.5 mm to mount the Nuki smart lock on the cylinder.

1/2 CYLINDER
With a half cylinder, you only measure one side.

1/2 CYLINDER WITH KNOB
With this one you only measure the inside.

MOUNTING THE CYLINDER

Instructions to mount your Nuki Smart lock with a Nuki Universal Cylinder
Instructions can also be found in the nuki app which will guide you through the installation process.

Mount the Smart Lock Ultra

Cylinder: Nuki Universal Cylinder Euro

Mount the Smart Lock gen. 1, 4 and Go

Cylinder: Nuki Universal Cylinder Euro

EXTENDING THE CYLINDER

Instructions to extend the length of a Nuki Universal Cylinder
These manuals describe the extension of a Nuki Universal Cylinder for the Nuki Smart Lock Ultra, using additional extension parts available in our webshop

Extend the Nuki Universal Cylinder Euro

for the Nuki Smart Lock Ultra