What’s Matter Smoke Sensor

CSA CertifiedCertification record

Matter certified: Yes. CSA certificate CSA25F7CMAT48846-24. We have no verified store link for it yet. Certificate data: CSA ledger read November 10, 2026.

Works with: Matter certified as a smoke CO alarm, so it can work with Matter apps such as Apple Home, Google Home, Alexa and SmartThings when the app supports its device type; supported features vary by app. The maker hasn’t named platforms on a page we hold.

Updated Oct 9, 2026: the last change to this page’s certification, platform or store facts.

Not sold by a US store we can verify. Similar CSA-certified smoke and CO alarms you can buy:

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Owl Wired Smoke & CO Alarm
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Certified model/software record
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Owl Home
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Heiman smart CO sensor
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CSA record available
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Amazon
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Sensereo MS1
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CSA record available
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Sensereo
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Why these: we have no US store link we can verify for this exact model. Each is a different product, certified by the CSA as the same device type, smoke CO alarm, with a CSA certificate for its own model and a store link we checked. The order is not a ranking.

Is the What’s Matter Smoke Sensor sold in the US?

MatterCatalog has no US store link for this exact model yet.

What you can do

Certified sensors sold in the US: Eve Door & Window (Matter), Eve Motion (Matter), Aqara Door & Window Sensor P2

We link a US store only after its listing matches this exact model. We check only stores our rules let us read, so a store we could not check may still sell it.

Certification record

A Matter certification on file for this model. There is no product photo or store link for it yet.

Certificate ID: CSA25F7CMAT48846-24
Maker: What’s Matter
Certificate holder: What’s Matter Inc.
Device type: Sensors
Connection: Thread, Wi-Fi

No US store link yet.

We link to a store only after its listing matches this exact model, region and package.

Shop sensors you can buy now →

Matter 1.4 certificate

Its certificate, CSA25F7CMAT48846-24, is for Matter 1.4, certified Dec 8, 2025. The Matter version is the specification version on the certificate's ledger record.

Source: CSA Distributed Compliance Ledger, read Nov 10, 2026.

What Matter 1.4 added, and which devices use it →

Matter-enabled smoke sensor for early fire warnings

ThreadWi-Fi