Smart WiFi Thermostat Meross MTS215BMA(EU) — room temperature control, Wi‑Fi connection

The Meross MTS215BMA(EU) Smart WiFi Thermostat is a wall-mounted thermostat designed for water-based heating systems. It combines a traditional control panel with Wi‑Fi and Bluetooth connectivity, allowing temperature adjustment from the device, a mobile app or via voice assistants. The unit supports scheduling, precise temperature measurement and integration with smart home setups to help align heating with daily routines and reduce unnecessary energy use.

Advantages

The thermostat offers remote control through 2.4 GHz Wi‑Fi and Bluetooth Low Energy, a clear minimalist display for straightforward local operation, and scheduling features to automate temperature changes. It provides measurement accuracy of ±0.5°C and supports boilers and hydronic underfloor heating, while requiring standard mains power and a compact flush-mounted installation.

Suitable for

• Homes with boiler-based central heating
• Hydronic underfloor heating systems
• Users who want app and voice control of room temperature
• Rooms where a compact flush-mounted thermostat is preferred

When it may not be suitable

This model is not intended for electric heating systems and should not be used where electrical heating control is required. It also requires a 2.4 GHz Wi‑Fi network and compatible mobile devices (iOS 16.1+ or Android 8.1+) for full smart features, so users without appropriate network or smartphones may be limited to local control only.

Key specifications

• Dimensions: 86 × 86 × 48 mm
• Power supply (input): 100–250 V~, 50/60 Hz
• Maximum output load: 3 A
• Temperature setting range: 5–35 °C
• Measurement accuracy: ±0.5 °C
• Wireless: IEEE 802.11 b/g/n (2.4 GHz) and Bluetooth Low Energy
• Network interface: HTTP (LAN communication and apps, port 80)
• Operating temperature: 0 °C to 40 °C
• Storage temperature: -40 °C to 70 °C
• Operating humidity: 10%–90% non-condensing
• Power consumption: < 1 W

How to use

Mount the thermostat in a standard flush-mounted box and connect it to the hydronic heating system following the included wiring diagram and safety instructions. Install the Meross app on a compatible iOS or Android device, connect the thermostat to a 2.4 GHz Wi‑Fi network and complete the setup to enable remote control and scheduling. Temperature can then be adjusted from the device display, the app, or via supported voice assistants once integration is configured.

What to consider before purchase

• Intended for boilers and hydronic (water-based) underfloor heating, not for electric heating
• Requires 2.4 GHz Wi‑Fi and a compatible smartphone (iOS 16.1+ or Android 8.1+)
• Maximum controlled load is 3 A—check compatibility with your heating actuator or boiler interface
• Ensure flush-mounted installation space matches dimensions (86 × 86 × 48 mm)

Usage recommendations

For stable room comfort and energy savings, set a lower temperature during absence or night and schedule a rise shortly before occupation; use the app and voice control for convenient adjustments and link the thermostat with other smart home devices if automation based on presence is required.