Netatmo Smart CO Alarm (EU): what it works with

Netatmo · model Smart Carbon Monoxide Alarm · For Europe

• Matter Unconfirmed
• Apple Home Yes
• Google Home Yes
• Amazon Alexa Unconfirmed
• SmartThings Unconfirmed
• Home Assistant Unconfirmed

The Netatmo Smart CO Alarm is a Wi-Fi carbon monoxide alarm with a sealed battery rated for 10 years. It pairs with Apple Home over Bluetooth and works with Google Assistant. Alexa support isn't confirmed.

Checked against 4 sources on Oct 23, 2026

Ecosystem compatibility

“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^[2],[3]

Hub required

No^[2]

Local control

Unconfirmed

Detects

Carbon monoxide (CO)^[1],[2]

Power

10-year sealed battery^[1],[2]

Alarms link wirelessly

Unconfirmed

• Radio: Wi-Fi 2.4 GHz and Bluetooth Low Energy.
• Hub: BTicino's catalogue says standalone, no hub required.
• Local control: Not described. The alarm sounds without Wi-Fi; phone alerts need Wi-Fi.
• Detects: Electrochemical CO detection, certified CE (EN 50291) and NF.
• Power: Two non-rechargeable lithium cells (CR17450 and CR17345) that last the alarm's life; no wiring needed. Netatmo's EU page title says 'mains and batteries', but BTicino's spec sheet lists battery power only.
• Alarms link wirelessly: Not described by Netatmo. BTicino's catalogue fields contradict each other (standard radio networking 'Yes' with a maximum of 1 device, optional radio networking 'No').

Before you buy

• BTicino's catalogue lists the alarm as not compatible with Alexa; no Netatmo page confirms Alexa support.
• Netatmo doesn't say whether alarms can be linked to each other.
• Smartphone alerts need Wi-Fi; the siren works without it.

Quick answers

Does the Netatmo Smart CO Alarm (EU) work with Apple Home?

Yes. The Netatmo Smart CO Alarm (EU) works with Apple Home directly. Legrand's catalogue and developer page list HomeKit compatibility over Bluetooth Low Energy. More smoke and CO alarms for Apple Home

Does the Netatmo Smart CO Alarm (EU) work with Google Home?

Yes. The Netatmo Smart CO Alarm (EU) works with Google Home directly. Legrand's developer page says the alarm works with Google Assistant, and Netatmo added Google Home support for its smoke and CO alarms in 2023 (Google can say which room the alarm is in). BTicino's catalogue entry still says not compatible, which predates that update. More smoke and CO alarms for Google Home

Does the Netatmo Smart CO Alarm (EU) work with Amazon Alexa?

Not confirmed. We couldn't find an official source either way. BTicino's catalogue entry says not compatible with Alexa; no Netatmo or Legrand page lists Alexa for this alarm.

Does the Netatmo Smart CO Alarm (EU) work with SmartThings?

Not confirmed. We couldn't find an official source either way. No Netatmo or SmartThings source found.

Does the Netatmo Smart CO Alarm (EU) work with Home Assistant?

Not confirmed. We couldn't find an official source either way. Home Assistant's Netatmo integration page lists no CO alarm among its supported device types.

Sources

1. Smart Carbon Monoxide Alarm — Netatmo manufacturer · accessed Oct 23, 2026
2. Smart carbon monoxide alarm NA-NCO-PRO — BTicino manufacturer · accessed Oct 23, 2026
3. Smart Carbon Monoxide Alarm — Legrand manufacturer · accessed Oct 23, 2026
4. Détecteurs de fumée et monoxyde de carbone Netatmo compatibles Google Home — AVCesar review · accessed Oct 23, 2026

Official product page: www.netatmo.com