Meross Matter Smart Thermostat MTS300MA
MTS300MA-US / Amazon MTS300 White; NA 24V HVAC; C-wire or compatible power arrangement
High confidence
2026-10-16 last checked
wifi transport
Specs
| Brand | Meross |
|---|---|
| Model | Matter Smart Thermostat MTS300MA |
| Device type | Thermostat |
| Matter / firmware | Matter 1.2 (CSA24507MAT43962-24, certified 2024-09-12, fw 9.3.2, hw 9.0; VID 0x1345 PID 0xE001; Primary 0x0301) |
| Transport | wifi |
| Thread role | n/a (Wi-Fi) |
| Confidence | High |
| Last checked | 2026-10-16 |
Platform support for this device type
| Field | Apple Home | Google Home | Amazon Alexa | SmartThings | Home Assistant | Homey | Hubitat |
|---|---|---|---|---|---|---|---|
| Pairs | Y | Y | Y | Y | Y | Y | Unknown |
| Control | Y | Y | Y | Y | Y | Y | Unknown |
| Starts automation | Unknown | Y | Unknown | Y | Y | Y | Unknown |
| Controlled by automation | Y | Y | Y | Y | Y | Y | Unknown |
| Confidence | Med | Med | Med | Med | High | Med | Med |
Product notes
CSA End Product Thermostat 0x0301 over Wi-Fi+Bluetooth. Maker shop/Amazon: Apple Home, Alexa, Google Assistant, SmartThings via Matter. Meross app required for initial HVAC configuration (Matter alone does not configure equipment). NA housing only — not EU line-voltage/boiler variants.
v0.48 High add. CSA product page fetched 2026-10-16 (Chengdu Meross; Primary 0x0301). Distinct from Meross MTS215MA US (no CSA — excluded).
How it differs from the type answer
- 24V HVAC wall thermostat (furnace/AC/heat pump) — closer to Nest-style HVAC cell than Eve Thermo TRV.
- C-wire or compatible power arrangement required; C-wire adapter sold separately.
- Schedules/energy tracking may remain in Meross app beyond Matter climate exposure.
Sources
- csa-iot.org · official · 2026-10-16
- shop.meross.com · official · 2026-10-16
- amazon.com · retail · 2026-10-16
- mattercatalog.com · community · 2026-10-16
- matteralpha.com · community · 2026-10-16