Nuki's Smart Module brings Matter over Thread to motorized front-door locks

Nuki began selling the Smart Module on November 5, 2026. It is a small controller that wires into a motorized lock or an A-opener (the electric opener on a self-locking multipoint lock) and joins Apple Home, Google Home, Alexa and SmartThings as a Matter lock over Thread. A door maker can build it into a new door at the factory, or an installer can fit it in a flush-mounted wall box beside an existing door. Nuki's launch announcement says it is available across Europe through door manufacturers, Nuki Pro Partner installers and the Nuki online shop. On November 7 the shop listed it at €359 in the eurozone, £309 in the UK, CHF 349 in Switzerland and SEK 4,199 in Sweden, with no US store page.

Every Matter lock Matterhome reviews, Nuki's own included, turns a key cylinder or replaces the lock hardware. None of them can drive the motorized locks and A-openers that Nuki names as compatible, from Winkhaus, GU, Siegenia, Fuhr, Roto and Maco among others. Nuki asks owners of other brands to submit the lock maker on that page. If your front door already has one of the named locks, the Smart Module is a tidy way to get it into a Matter home with nothing visible on the door, with one open question about its Matter controls, covered below. If your door has a manual cylinder lock with no motor, it is the wrong product: a battery lock such as the Nuki Smart Lock Pro costs less, mounts without an electrician and sits on the same Matter-over-Thread path.

Wired power and an installer's bill

The module draws permanent power from the lock it controls, so there are no batteries to change. The same wiring sets the outage behavior: Nuki's FAQ says that if the lock loses power, the module does too, and the Nuki app can no longer reach it. Keep a physical key if your lock accepts one, or another way in that does not depend on the lock's power supply.

On a retrofit, the module goes into a flush-mounted box next to the door and connects to the lock's existing cables, which Nuki says to leave in place. The Nuki app guides the wiring. You also need three terminal clamps (five-, three- and two-port) and insulation tape, which are not in the box, and Nuki's installation article warns that changing the door's existing wiring can cause damage or fires and voids the warranty. Nuki's own pages disagree on who should do it. The shop page allows self-installation by people experienced with wiring diagrams, polarity and circuit protection, while the product page FAQ says a qualified electrician must install it. Budget for an electrician or a Nuki Pro Partner on top of the €359. For a new door, Nuki has partnered with REHAU Window Solutions and the door maker Weru, so you can order a front door with the module already built in through a fabricator or carpenter.

The module has two outputs and one input. Depending on the lock and how it is wired, the first or second output can hold the door in passage mode, where it opens with a push, and the second output can instead switch something else, such as a light or a mailbox door. The input can take an external door sensor or a switch that unlocks the door. You set all of this in the Nuki app.

The Matter path needs Thread and the Nuki app first

The CSA certified the module on October 1, 2026, as a Matter 1.4.1 door lock; the record lists Thread and Bluetooth. Matter runs only over Thread here, so the home needs a Thread border router such as a HomePod mini, an Apple TV 4K with Thread, a Nest Hub (2nd gen), an Echo (4th Gen) or a SmartThings Station. Our Thread border router guide covers the choice. Nuki's setup article has you turn on Matter in the Nuki app before you scan the code in Apple Home or another platform, and the same screen adds the lock to a second platform later. The QR code and 21-digit setup code come in the box, the code is also printed on the module, and Nuki says an installer may stick a smaller copy on the door. If the module ends up hidden inside the door, keep the code from the packaging.

Remote access through the Nuki app needs no extra purchase and has two routes. The module has built-in Wi-Fi, which needs a 2.4 GHz network and does not work with Wi-Fi 6, WPA3-only or 5 GHz settings. Or it can use Remote Access via Thread, which is included here (the Smart Lock Go charges €49 for it), provided the border router passes internet traffic to Thread devices (NAT64). The same Nuki article warns that Google Home cannot currently lock or unlock Nuki devices by voice. Nuki markets the module for Apple Home, Google Home, Alexa and SmartThings, but its setup article also lists Home Assistant (with a Connect ZBT-1) and Homey Pro among compatible Thread hubs, and Home Assistant owners can use Nuki's local MQTT integration instead.

What the Matter lock tile will do is undocumented

A Matter door lock gives each platform Lock and Unlock controls. Nuki's help article on lock actions lists only two for the Smart Module: Open, which releases the door so you can walk in, and Control other output. It lists no lock action. Nuki's separate article on Matter lock actions covers its smart locks only. It says separate Unlock and Open door controls work only in Home Assistant, and that other platforms run whichever unlock action is set in the Nuki app; it was last edited in June, before Google Home added an unlatch control for compatible European locks. Nuki has not said what Lock and Unlock do on a motorized door, what lock state Apple Home, Google Home, Alexa or SmartThings will show, or whether the door sensor input, passage mode and second output reach Matter at all. Until Nuki says otherwise, plan to manage them in the Nuki app, along with keypad codes and access sharing.

That matters most for automations. A Matter routine that locks the front door at night, or a dashboard that reports it as locked, is only useful if the tile matches what the lock does. Until Nuki documents the module's Matter lock actions, have the installer test each control in your platform's app while someone stands at the door with a key, and use the Nuki app for anything the tile does not show.