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What’s MatterSensors

What’s Matter Window and Door Sensor

CSA CertifiedCertification record

Matter certified: Yes. CSA certificate CSA259E8MAT47418-24. We have no verified store link for it yet. Certificate data: CSA ledger read .

Works with
Matter certified as a contact sensor, 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.
Network & hub
Thread; needs a Thread border router as well as your platform’s Matter controller

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

Not sold by a US store we can verify. Similar CSA-certified contact sensors you can buy:

Independent guide. We may earn a commission through affiliate links. Direct non-affiliate links are labeled. How our links work

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, contact sensor, with a CSA certificate for its own model and a store link we checked. Models on the same network (Thread) come first; the order is not a ranking.

Certification record

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

Certificate ID
CSA259E8MAT47418-24
Maker
What’s Matter
Certificate holder
What’s Matter Inc.
Device type
Sensors
Connection
Thread

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, CSA259E8MAT47418-24, is for Matter 1.4, certified Oct 2, 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 →

What’s Matter Window and Door Sensor is a door and window contact sensor from What’s Matter that detects open and closed status. It connects over Thread, so Matter setup needs a Thread border router. It is CSA Matter certified (certificate CSA259E8MAT47418-24).

Thread

Ecosystem compatibility

Matter

Sensors you can buy

Products in this category with a photo and a verified store link.

Best Matter Smart Sensors 2026

Compare motion, contact, presence and leak detection, with sourced power and setup requirements.

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