Nest Protect (UK): what it works with
Google · model Nest Protect (2nd gen) · For the UK
- Matter Unconfirmed
- Apple Home Unconfirmed
- Google Home Yes
- Amazon Alexa Unconfirmed
- SmartThings Unconfirmed
- Home Assistant Unconfirmed
The UK 2nd-generation Nest Protect is a smoke and carbon monoxide alarm in battery and 230 V wired versions. It reports to the Google Home and Nest apps. Google has stopped selling it but still supports it.
Checked against 3 sources on
Ecosystem compatibility
| Platform | Works? | Details |
|---|---|---|
| Matter | Unconfirmed | Google's pages seen don't mention Matter. |
| Apple Home | Unconfirmed | No Google page mentions Apple Home. |
| Google Home | Yes | Nest Protect is in the Google Home app for status, settings and silencing. Setup and some features still use the Nest app.[2] |
| Amazon Alexa | Unconfirmed | No Google page mentions Alexa. |
| SmartThings | Unconfirmed | No Google or SmartThings source found. |
| Home Assistant | Unconfirmed | No Home Assistant source found. |
“Via Matter” means you add it with that platform's Matter controller instead of a brand skill or app. “Unconfirmed” means we couldn't find an official source either way. How we verify.
Specs that matter for setup
- Radio
- Wi-Fi, Bluetooth[1]
- Hub required
- No[1]
- Local control
- Unconfirmed
- Detects
- Smoke, Carbon monoxide (CO)[1]
- Power
- 6 × AA (battery) or 230 V wired[1]
- Alarms link wirelessly
- Yes[3]
- Radio: Wi-Fi 2.4 GHz, Bluetooth Low Energy and 802.15.4 (used for wireless interconnect).
- Hub: Needs only Wi-Fi, the Nest app and a phone with Bluetooth for setup.
- Local control: Not described.
- Detects: Split-spectrum smoke sensor and a 10-year electrochemical CO sensor. Tested to EN 14604:2005 and EN 50291-1:2018.
- Power: The UK 2nd gen comes as a battery model (six L91 AA) or a 230 V wired model with three backup AA.
- Alarms link wirelessly: Google's interconnect page says battery and wired (120 V or 230 V) Protects link to each other directly over their own radio, without Wi-Fi, and pass alerts on within seconds.
Before you buy
- Google no longer sells Nest Protect, but says it is still supported.
- Setup and factory reset still need the Nest app.
Quick answers
- Does the Nest Protect (UK) work with Apple Home?
- Not confirmed. We couldn't find an official source either way. No Google page mentions Apple Home.
- Does the Nest Protect (UK) work with Google Home?
- Yes. The Nest Protect (UK) works with Google Home directly. Nest Protect is in the Google Home app for status, settings and silencing. Setup and some features still use the Nest app. More smoke and CO alarms for Google Home
- Does the Nest Protect (UK) work with Amazon Alexa?
- Not confirmed. We couldn't find an official source either way. No Google page mentions Alexa.
- Does the Nest Protect (UK) work with SmartThings?
- Not confirmed. We couldn't find an official source either way. No Google or SmartThings source found.
- Does the Nest Protect (UK) work with Home Assistant?
- Not confirmed. We couldn't find an official source either way. No Home Assistant source found.
Sources
- Nest Protect 2nd generation technical specifications — Google manufacturer · accessed Oct 23, 2026
- Nest Protect now available in the Google Home app — Google manufacturer · accessed Oct 23, 2026
- Learn about wireless interconnect for Nest Protect — Google manufacturer · accessed Oct 23, 2026
Official product page: support.google.com