Matter smoke or CO alarm on Google Home
For smoke and CO alarms, Google Home supports pairing, control and automation triggers. It does not support automation actions. Our confidence in this answer is High.
At a glance
| Answer | Google Home |
|---|---|
| Pairing | Y |
| Control | Y |
| Starts an automation | Y |
| Controlled by an automation | N |
| Confidence | High |
| Matter spec | 1.2+ |
What this means
All four answers are confirmed for this device type on this platform. Individual products can still implement less than the device type — check the product notes before you buy.
Requirements
Hub requirement: Google/Nest Matter hub required. Thread border router for Thread devices.
Matter spec: 1.2+.
Confidence
We have direct, dated evidence for most of these answers, including native hands-on reports where available.
Sources
- developers.home.google.com · official · 2026-10-19
- developers.home.google.com · official · 2026-10-19
- developers.home.google.com · official · 2026-10-19
- developers.home.google.com · official · 2026-10-18
- support.google.com · official · 2026-10-18
- support.google.com · release-note · 2026-10-18
- meshsmarthome.com · test · 2026-10-18
- matteralpha.com · test · 2026-10-18
Frequently asked questions
Does a Matter smoke or CO alarm work with Google Home?
Google Home pairs a Matter smoke or CO alarm and reports alarm state — a life-safety device where a confirmed trigger matters more than price. High confidence, checked 2026-10-19. Google Home can control a Matter smoke or CO alarm from its app, including alarm state (High, checked 2026-10-19).
Can Google Home start an automation from a Matter smoke or CO alarm?
Yes — a Matter smoke or CO alarm that is sounding can start a Google Home automation, though the alarm must also stand alone. As an action, Google Home cannot use a Matter smoke or CO alarm in an automation (High, checked 2026-10-19).
What do I need to add a Matter smoke or CO alarm to Google Home?
Google Home needs a Matter controller before a Matter smoke or CO alarm will report.
Next steps
- All Google Home answers for smoke and CO alarms, side by side — the full smoke or CO alarm matrix across every platform.
- Compare Google Home with another platform — pairing, control, triggers and actions in one table.
- Check whether your setup will work — answer a few questions and get a verdict with caveats.
- Matter products of this type — tested products with their own notes and sources.
- Matter on Google Home: every device type
- Smoke or CO alarm support guide
- All platforms compared
- How to check Matter certification
- Matter firmware updates on each platform
- How we check — evidence rules, confidence ratings and how often we re-check.
Other platforms for smoke and CO alarms
- Apple Home — supports pairing, control and automation triggers Med
- Amazon Alexa — supports pairing, partial control and automation triggers Med
- SmartThings — supports pairing, control and automation triggers High
- Home Assistant — supports pairing, control and automation triggers High
- Homey — supports pairing, control and automation triggers Med
- Hubitat — no confirmed support Med