Smart Wi-Fi Thermostat

MTS200 EU for Boiler/Water Underfloor Heating System
  • Compatible with most boiler/water heating systems. Control from anywhere with internet anytime. Works with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings.
  • 0.5℃ temperature accuracy with an adjustable temperature of 5-35℃.
  • Pure white LED backlight, covered by elegant glass panel. Minimalist design that fits any decoration style.
  • Save your heating cost with a 7x24 hours smart graphic schedule. Never worry about arriving home with a cold room, or leaving the house with the system heating.
  • Open window detection function. Automatically stop heating when the open window is detected. Save more on your heating bill.
  • Integrated and external dual temperature sensor system, either one of them can be used for temperature control.
  • 86 x 86 x 42 mm
Heating system
  • works with boiler/water heating system
  • 100-250V~, 50/60Hz
  • 3A Max.
Set Point Range
  • 5~35℃
  • ±0.5 ℃
Wireless Standards
  • IEEE 802.11 b/g/n, 2.4GHz
  • CE,RoHs,WEEE
Package Contents
  • 1 x Smart Wi-Fi thermostat
  • 1 x User manual
  • 1 x Sensor(β=3950 R25℃=10KΩ)
  • 4 x Screws
System Requirements
  • Smartphone running iOS 13.0 or later, Android 6.0 or later
  • Existing Wi-Fi network
Power Counsumption
  • < 1 Watt
  • Operating Temperature: 0°C~40°C (32°F~104°F)
  • Storage Temperature: -40°C~70°C (-40°F~158°F)
  • Operating Humidity: 10%~90% non-condensing
  • Storage Humidity: 5%~90% non-condensing
Can I use the floor sensor(external sensor) to control the temperature of MTS200(EU)?

Yes, you can use the internal sensor to control the temperature and the external sensor to do the floor overheating protection(optional). Or you can use the external sensor to control the temperature, at which point it will no longer be used for floor overheat protection detection. This sensor option function is supported by Meross app.

How to install the MTS200(EU) with my boiler/water heating system?

You can install the MTS200(for boiler/water system version) with your system according to the diagram below. The sensor connected to terminal 6,7 is optional. You can also follow up the Meross App step by step to set up your system.


Gas boiler heating system.(Control the boiler with thermostat)



Water underfloor heating system(Control the thermal actuator

with thermostat, support both 2-wire actuator and 3-wire actuator).


Learn More