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SEISensors

SEI Water Leak Sensor

CSA CertifiedCertification record

Matter certified: Yes. CSA certificate CSA262FCMAT52552-24, certified May 13, 2026. We have no verified store link for it yet. Certificate data: CSA ledger read .

Works with
Matter certified, 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 water leak 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, water leak detector, with a CSA certificate for its own model and a store link we checked. 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
CSA262FCMAT52552-24
Certified
May 13, 2026
Maker
SEI
Device type
Sensors
Connection
Thread, Bluetooth
Firmware
1.0.0.5

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 1.4.2 certificate

Its certificate, CSA262FCMAT52552-24, is for Matter 1.4.2, certified May 13, 2026. The Matter version is the specification version on the certificate's ledger record.

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

What Matter 1.4.2 added, and which devices use it →

SEI Water Leak Sensor is a smart sensor. It is listed as a Thread device, so Matter setup needs a Thread border router such as a HomePod mini or a Google Nest Hub (2nd gen). It is CSA Matter certified (May 13, 2026), 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.

ThreadBluetooth

Ecosystem compatibility

Matter
Apple HomeUnverified
AlexaUnverified
Google HomeUnverified
SmartThingsUnverified

Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.

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.

Read the full buying guide →

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