SEI Matter devices

Does SEI support Matter? Yes: 2 of the 4 SEI products MatterCatalog lists as reference records have a CSA Matter certificate on file. By Matter network, 2 use Thread (2 records do not name a single network). Thread devices need a Thread border router. None has a verified US store link yet. On the CSA’s Distributed Compliance Ledger (read Oct 19, 2026), SEI holds 24 certified models, first certified Apr 2026, newest Jul 2026.

As of October 24, 2026. The counts on this page are from the MatterCatalog catalog (Matter products sold in the US with a verified store link); “CSA certified” means a CSA certificate that names the exact model. Sources: MatterCatalog: Matter certified devices sold in the US; CSA certified products database; How MatterCatalog checks (editorial policy).

• Platforms its catalog records list: Amazon Alexa (2), Apple Home (2), Google Home (2), Samsung SmartThings (2). Each product page says which of these the maker's own site confirms.
• Products: SEI Door and Window Sensor, SEI Water Leak Sensor and SEI 60G millimeter-wave radar.
• Categories: Matter sensors.
• Other brands: which smart home brands support Matter, brand by brand.