Installation Check New

Check if Nuki Smart Lock fits your door

Answer 7 brief questions to find out if Nuki Smart Lock can be installed on your door lock.

If you are not sure, send us a picture of your door lock to

Does the cylinder have one of the following shapes on the inside of the door? (1/7)


Nuki Smart Lock is mounted on the cylinder on the inside of your door. It is important that the cylinder has the shape of the Euro Profile cylinder. The orientation of the keyhole doesn't matter, it is just about the outer shape. More information on cylinders and the installation requirements for Nuki Smart Lock can be found here.

Can you lock the door from the outside, even if there is a key inserted on the inside? (2/7)

BSZ Funktion

If there is a key inserted on the inside of your door and you can still lock from the outside, your lock is equipped with the emergency function (also called external key override function). You need this function to be able to lock the door with your physical key from the outside, when Nuki Smart Lock is installed inside. To ensure that the Smart Lock is working correctly, your key should rotate on the inside when you lock from the outside.

Do you have an iPhone (4S or higher) or a smartphone with Android operating system (Android 4.4 or higher)? (3/7)

iOS oder Android

To be able to set up a Smart Lock you need the Nuki app. The Nuki app is available for Android (4.4 or higher) and iOS devices (iPhone 4S or higher). You can download it from the app stores (for free).

Do you use additional locks on your door? (4/7)

Nuki Smart Lock can only operate one Euro Profile cylinder and no additionally installed locks (rim lock, lock bar, additional lock, door chain).

Does your door open inwards? (5/7)


If you stand in your home and pull the door inwards to open it, the door opens inwards.

Is the backset bigger than 30mm? (5b/7)

The backset is the distance from the center of the keyhole to the outer edge of the door.

Is the key bow (where you hold the key) thicker than 4mm? (6/7)


In case there is a removable plastic cap on your key, you should remove it for the use with Nuki Smart Lock.

Does the key protrude more than 40mm from the lock? (7/7)


If the key protrudes more than 40mm from the lock, it does not fit into the Smart Lock.

Installation Requirements


Euro Profile Double Cylinder

with emergency function


Door fitting

shield or rosette fitting


Knob or handle

Nuki can pull the latch


Multipoint lock

Nuki can work with that


Vertical key channel

no problem for Nuki


Swiss Round Cylinder

not yet possible


UK Oval Cylinder

does not work


American Dead Bolt

does not work


Knob cylinder

Nuki can’t work with knobs on the inside


Additional security lock

does not work


Automatically locking lock

does not work