Nuki Smart Lock

The Smart Lock you control with your phone, smart platform or a key that is secured with an Ultion Nuki and Nuki PLUS SmartLock

Smarter locking for UK homes

One model fits all

  • Ring Door Bell
  • Amazon Alexa
  • Google Home
  • AirBnB

  • Apple HomeKit
  • Nuki App
  • IFTT
  • Smart Watches

Hands free auto-unlock for freedom of movement

Talking on the phone and holding the dog’s lead? Busy carrying shopping bags? You don’t have to pick up your keys or your phone. Ultion Nuki unlocks the door when it senses you’re close to it, and locks it again after a few seconds. You can turn the feature on and off and customise everything

The key is the key

We think that to make something truly smart is to not remove what you already had. That’s why Ultion Nuki can still be operated with a key

Still keeping the bad guys out

It’s smart and gorgeous, but that’s far from enough. Our priority is to keep bad guys out. The heart of the Ultion Nuki is a 3-star PLUS Ultion lock, and the Nuki unit has the highest AV security rating, with three stars

One size fits all

The Ultion Nuki has been designed to fit existing doors with handle fixings of 215mm, 211mm, 122mm and even doors with an escutcheon lock. Elegance matches discretion. Our all-white internal finish perfectly blends with most doors’ classic white internal paint

Press, twist and relax

The centre of the Ultion Nuki is a button. This can be set to tell the motor to lock or unlock the door. Or you can simply twist the dial for a manual operation

Ultion Nuki + Bridge

Ultion Nuki, Bridge + Keypad

Ultion Nuki, Bridge, Keypad + Key Fob

Ultion Nuki, Keypad + Key Fob

Central Locking

With multiple Ultion Nuki you can lock all the doors in the house with one simple instruction through your preferred Smart platform

Open up a better way of living
with our exclusive accessories


For complete peace of mind, the bridge allows you to lock and unlock the door from anywhere in the world, using our app’s highly secure system

External handle

You can customise your external handle with seven colours and a range of fixing sizes. Our external handles come with a 20-year anti-corrosion guarantee

Key fob

The bluetooth key fob can be set to unlock your door within 10 metres of the door after 2 or 3 presses to give you the peace of mind that an accidental press won’t unlock the door

Key fob bundle

3 times the access with our Key fob bundle

Bluetooth keypad

With our sleek, modern Bluetooth keypad, you can set 100 different passwords and lock the door by pressing one button. You can even have codes that work only at specific times and on particular days. You’ll never need to take your keys with you again

Rechargeable battery pack

The 4 AA batteries bundled in the Ultion Nuki will keep powering your door lock for over a year, and the app will notfiy you when the batteries are running low. Alternatively there is an optional USB rechargeable battery pack

Available as Self-Install or Assisted Set-up

Frequently asked Questions on the NUKI Smartlock

How secure is the Smart Lock?

Ultion Nuki features the 3 star plus Ultion cylinder, and carries a £2000 security guarantee. There is no security standard that this locking mechanism has not passed

All communication with Ultion Nuki lock is protected with state-of-the-art end-to-end encryption commonly used in online banking
It is also regularly inspected and certified by independent security institutes. The Nuki Smart Lock achieves the highest AV-TEST available (level 3)

I need to lift the door handle to lock my door. Will the Ultion Nuki work with my door?

Ultion Nuki was designed with this type of door in mind. All Ultion Nuki unlocking features work with your door. When you pass through the door lift the handle as normal and all locking features are available

What happens if there is a power cut, or my Wi-Fi goes down?

You’re never locked out (or in) with Ultion Nuki. Being Bluetooth and battery powered you can still control the door whilst at home using your phone, wireless keypad, wireless fob or even your key. Only remote connections that rely on the internet and power will be affected

How long do the batteries last, and what happens when they run out?

The Ultion Nuki uses 4x AA batteries and they will last for several months. When the battery level reaches below 20% you will be notified via the Nuki app and directly on the Smart Lock via the LED lights. You can also enable email notifications. Even if you miss these, the Ultion Nuki is also a normal mechanical lock. You can use a key from the outside and the dial on the inside until the batteries are replaced
The Ultion Nuki is also compatible with rechargeable batteries. For a longer usage we recommend the rechargeable batteries Panasonic eneloop pro. These batteries last about twice as long as alkaline batteries

Are there any ongoing charges?

Absolutely none. There isn’t even a charge for sending additional electronic keys

Will it fit my door?

By using the same fixing holes already in your door, replacing your door handle with Ultion Nuki is simple. As well as an escutcheon model (the type of door that doesn’t have a push down handle) it will easily replace all common UK push down door handles. It accommodates lever handles where the distance between the handle fixings is 215mm, 211mm and 122mm. The distance between the centre of the handle (spindle) and the barrel (keyhole) should be 92mm

The adjustable design of the Ultion Nuki handle also means that should you change your door, or move house, you can continue to use it on the new door without needing to buy a new handle

How does auto lock work?

The auto-lock function is set on a timer from the app. The timer starts whenever the door is unlocked, and it will automatically lock itself again once the timer expires

The Ultion Nuki also features a Night Mode. Just set the time it should start at night and the time it should end in the morning. It will automatically lock at the start of Night Mode and enable energy saving mode until the morning
Auto lock can also be set to only work during Night Mode if you need to keep the door unlocked during the day, if you’re a business owner for example. You can even set schedules to lock and unlock at certain times

How does auto unlock work?

Auto Unlock works by combining GPS, Bluetooth and geofences (iBeacons). With the GPS on your smartphone Nuki recognizes when you leave your home. When you approach your home again and enter a geofence near the smart lock, the app Bluetooth scans for your smart lock. If the app establishes a Bluetooth connection within 20 minutes of entering the geofence your door will automatically unlock. To avoid unwanted locking operations the next Auto Unlock will only be triggered when you exit the geofence and enter it again

Can the lock be operated manually?

The Ultion Nuki can always be operated manually through the use of a physical high-security key or the manual thumbturn

Will the wireless keypad work with my door?

The wireless keypad is battery and Bluetooth powered. This means there are no wires and it can be positioned anywhere within Bluetooth range of your door, it doesn’t have to be on the door

Is the Ultion Nuki compatible with my Smart Home?

The Ultion Nuki can be integrated with Apple Homekit, Google Home, and Amazon Alexa. This enables you to lock and unlock via voice commands, add the lock to routines, and operate the lock from their respective apps
The lock can also be connected to many other Smart home systems, such as IFTTT, Ring app, and Homey
Custom smart home systems are also accommodated with an an open API enabling integration of into lots of different use cases
Please note that Alexa and Google Home integrations required the bridge (sold separately)

What's to stop someone shouting "Alexa, unlock my door" through my letterbox?

You’re still protected if you combine Alexa/ Google Home with Ultion Nuki. During the Alexa / Google Home setup you will be prompted to set up a passcode. Alexa then asks for the passcode whenever an unlock request is made. The code is not required when you lock the door

Can I use my existing lock and key?

Ultion Nuki works with a specific type of Ultion lock that has only ever been used within an Ultion Smart lock. Whilst Ultion locks that are operated from the inside with a key or a thumbturn will not fit in Ultion Nuki we can make your Ultion Nuki work from your existing Ultion key. There is no charge for this service

Is the Ultion Nuki suitable for Air BnB?

When used with the bridge, Ultion Nuki is a great addition to any Airbnb with seamless integration with the Airbnb app. Your guests automatically receive a digital access code after booking and will automatically expire at the end of their stay