Nuki Smart Lock Ultra (Euro Profile): Compatibility Guide.

Compatible Cylinder Types

The Nuki Smart Lock Ultra is compatible with euro profile cylinders.

Inside length: ≤ 68 mm*

Measure from the retaining screw to the inner door plate, not including the cylinder overhang. This inner length shouldn’t exceed 68 mm*.

* 68 mm ≈ 2.68 in

Outside length: ≤ 55 mm*

Measure from the retaining screw to the outer door plate, not including the cylinder overhang. This outer length shouldn’t exceed 55 mm*.

* 55 mm ≈ 2.17 in

Door opens inwards:

Does your door open inwards? Then the distance from the keyhole center to both the door frame and the handle must be more than 30 mm*.

30 mm ≈ 1.18 in

Door opens outwards:

Does your door open outwards? Then the distance from the keyhole center to the door frame must be more than 40 mm*, and the distance to the handle must be more than 30 mm*.

40 mm ≈ 1.57 in | 30 mm ≈ 1.18 in