Meross MTS300MA
The Meross MTS300MA is Matter certified (certificate CSA24507MAT43962-24, certified Sep 12, 2024). It uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller. A certified Matter device can be added to any Matter controller whose app supports its device type, such as Apple Home, Google Home, Alexa, SmartThings or Home Assistant; features vary by app. The maker’s own site names Apple Home and Alexa. Sold in the US at Amazon and Meross.
Certificate data: CSA ledger read . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA24507MAT43962-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Sep 12, 2024 · Connectivity: Wi-Fi · Platforms: Apple Home and Amazon Alexa (named by the maker); Google Home (listed in its catalog record, unverified) · Thread border router: Not needed (uses Wi-Fi)
- Works with
- Apple Home and Amazon Alexa (named by the maker)
- CSA certificate
- CSA24507MAT43962-24, certified Sep 12, 2024
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
Updated : the last change to this page’s certification, platform or store facts.
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CSA Matter Certified
Certificate: CSA24507MAT43962-24Matter 1.2 certificate
Its certificate, CSA24507MAT43962-24, is for Matter 1.2, certified Sep 12, 2024. The Matter version is the specification version on the certificate's ledger record.
Source: CSA Distributed Compliance Ledger, read Oct 31, 2026.
What Matter 1.2 added, and which devices use it →A Wi-Fi thermostat for compatible North American heating and cooling systems. Choose it after checking your HVAC configuration and power supply, not simply because your existing thermostat looks similar. 24 V AC / 50–60 Hz · 1 A maximum output. A C wire or compatible power arrangement is required. Use Meross’s system checker and have an HVAC professional confirm the installation. Not a 120–240 V electric-baseboard thermostat. Meross recommends this housing and model for North America, not Europe.
Specifications
- Brand
- Meross
- Category
- Thermostats
- Protocols
- Wi-Fi, Matter
- Certificate ID
- CSA24507MAT43962-24
- Certified
- Sep 12, 2024
- Firmware
- 9.3.2
Ecosystem compatibility
Checked platforms are named on the maker’s own site. Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.
Quick answers
- Is the Meross MTS300MA Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA24507MAT43962-24, certified Sep 12, 2024.
- Does the Meross MTS300MA work with Apple Home or HomeKit?
- Yes. The maker’s own site names Apple Home, and it is Matter certified (certificate CSA24507MAT43962-24). Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub. Apple’s Matter page lists thermostats among the accessory types the Home app supports.
- Does the Meross MTS300MA work with Google Home?
- Likely. It is Matter certified (certificate CSA24507MAT43962-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home. Google’s supported-device-types page lists the Thermostat type.
- Does the Meross MTS300MA work with Alexa?
- Yes. The maker’s own site names Alexa, and it is Matter certified (certificate CSA24507MAT43962-24). Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does.
- Does the Meross MTS300MA work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA24507MAT43962-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named SmartThings on a page we hold. SmartThings adds Matter devices through the SmartThings app and a Matter controller.
- Does the Meross MTS300MA work with Home Assistant?
- Likely. It is Matter certified (certificate CSA24507MAT43962-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.”
- Does the Meross MTS300MA use Thread or Wi-Fi?
- Wi-Fi. Its catalog record lists Wi-Fi, so it joins your Wi-Fi network and does not need a Thread border router. You still need your platform’s Matter controller.
- Does the Meross MTS300MA need a hub or a Thread border router?
- No hub of its own and no Thread border router: it joins your Wi-Fi network. You still need your platform’s Matter controller (a smart speaker, display, streaming box or hub), though Apple says an iPhone using iOS 18 or later can add Matter accessories without a home hub.
- When was the Meross MTS300MA Matter certified?
- The CSA certified it on Sep 12, 2024 (certificate CSA24507MAT43962-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the Meross MTS300MA?
- MatterCatalog has verified store links for it at Amazon and Meross. Check the current price, model and pack size at the store.
From this product’s catalog record, not hands-on testing. Editorial policy
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