MEROSS MTS155MATTRI Intelligent thermostat
Description
About this product
The Meross MTS155MATTRI smart thermostat is a set of 3 radiator thermostats for convenient temperature control at home. The thermostat works with the Matter over Thread standard and can be controlled from the Meross app or with voice commands. Schedules and open window detection help reduce unnecessary energy consumption.
Control via Matter
The thermostat works with Apple Home, Google Home and Amazon Alexa thanks to Matter over Thread technology. You can set the temperature from the app or with voice commands directed to Siri, Alexa and Google Assistant, without going up to the radiator. Matter functionality requires a compatible controller with a Thread border router, and a dedicated Meross gateway is not required.
Schedule and history
In the Meross app you can set a schedule that changes the temperature at selected hours. You can plan a higher temperature for the morning and evening, and a lower one for when you are away. The app shows the history of temperature changes, heating time and valve position in daily, weekly, monthly and yearly views. After entering the heating rate, it will also help estimate costs.
Open window detection
When a window is opened, the thermostat can temporarily pause heating. The radiator then does not work unnecessarily while you air out the room. There is no need to manually change settings.
Automatic valve maintenance
The function is enabled in the Meross app, and the device regularly performs a full cycle of opening and closing the valve. This movement helps prevent limescale build-up and mechanism blockage. The reinforced construction increases the durability of the thermostat, and the improved measurement accuracy helps maintain the set temperature.
Valve adapters
The thermostat has an M30 × 1.5 connector, and the set includes Danfoss RA, RAV, RAVL, Giacomini, Caleffi and M28 × 1.5 adapters. This means it can be fitted to many popular radiator valves without replacing the whole radiator. Power from two 1.5 V AA batteries eliminates the need to connect wires.
Specifications
| Manufacturer | Meross |
| Model | MTS155MATTRI |
| Device type | smart radiator thermostat |
| Wireless connectivity | Thread 1.4, Bluetooth LE 6.0 |
| Technology | Matter over Thread |
| Compatible systems | Apple Home, Google Home, Amazon Alexa |
| Control | app, voice commands |
| Connector | M30 × 1.5 |
| Power supply | 2 × 1.5 V AA battery (not included, disposable batteries) |
| Dimensions | 8.2 × 5 × 5 cm |
| System requirements | iOS 17 or newer, Android 8.1 or newer, Bluetooth 4.0 or newer |
| Matter requirements | Matter controller with a Thread border router |
| Operating temperature | from 0°C to 40°C |
| Storage temperature | from -40°C to 70°C |
Notes
Batteries are not included.
However, to use the Matter functionality, a compatible Matter controller with a Thread border router is required, e.g. Apple HomePod mini, Amazon Echo 4th generation or Google Nest Hub 2nd generation.
The device supports Thread 1.4 and Bluetooth 6.0 and does not require a dedicated Meross gateway.
Description
About this product
The Meross MTS155MATTRI smart thermostat is a set of 3 radiator thermostats for convenient temperature control at home. The thermostat works with the Matter over Thread standard and can be controlled from the Meross app or with voice commands. Schedules and open window detection help reduce unnecessary energy consumption.
Control via Matter
The thermostat works with Apple Home, Google Home and Amazon Alexa thanks to Matter over Thread technology. You can set the temperature from the app or with voice commands directed to Siri, Alexa and Google Assistant, without going up to the radiator. Matter functionality requires a compatible controller with a Thread border router, and a dedicated Meross gateway is not required.
Schedule and history
In the Meross app you can set a schedule that changes the temperature at selected hours. You can plan a higher temperature for the morning and evening, and a lower one for when you are away. The app shows the history of temperature changes, heating time and valve position in daily, weekly, monthly and yearly views. After entering the heating rate, it will also help estimate costs.
Open window detection
When a window is opened, the thermostat can temporarily pause heating. The radiator then does not work unnecessarily while you air out the room. There is no need to manually change settings.
Automatic valve maintenance
The function is enabled in the Meross app, and the device regularly performs a full cycle of opening and closing the valve. This movement helps prevent limescale build-up and mechanism blockage. The reinforced construction increases the durability of the thermostat, and the improved measurement accuracy helps maintain the set temperature.
Valve adapters
The thermostat has an M30 × 1.5 connector, and the set includes Danfoss RA, RAV, RAVL, Giacomini, Caleffi and M28 × 1.5 adapters. This means it can be fitted to many popular radiator valves without replacing the whole radiator. Power from two 1.5 V AA batteries eliminates the need to connect wires.
Specifications
| Manufacturer | Meross |
| Model | MTS155MATTRI |
| Device type | smart radiator thermostat |
| Wireless connectivity | Thread 1.4, Bluetooth LE 6.0 |
| Technology | Matter over Thread |
| Compatible systems | Apple Home, Google Home, Amazon Alexa |
| Control | app, voice commands |
| Connector | M30 × 1.5 |
| Power supply | 2 × 1.5 V AA battery (not included, disposable batteries) |
| Dimensions | 8.2 × 5 × 5 cm |
| System requirements | iOS 17 or newer, Android 8.1 or newer, Bluetooth 4.0 or newer |
| Matter requirements | Matter controller with a Thread border router |
| Operating temperature | from 0°C to 40°C |
| Storage temperature | from -40°C to 70°C |
Notes
Batteries are not included.
However, to use the Matter functionality, a compatible Matter controller with a Thread border router is required, e.g. Apple HomePod mini, Amazon Echo 4th generation or Google Nest Hub 2nd generation.
The device supports Thread 1.4 and Bluetooth 6.0 and does not require a dedicated Meross gateway.
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