Smart Thermostat Valve

  • Control from anywhere with internet anytime.
  • Works with Amazon Alexa and Google Assistant.
  • Save your heating cost with smart heating schedule. Never worry about arriving home with a cold room, or leaving house with the radiator heating.
  • Open window detection function. Automatically stop heating when open window is detected. Save more on your heating bill.
  • Meross hub is required for internet connection.
Non-HomeKit Version: Smart Thermostat Valve Smart Thermostat Valve
Amazon Site
  • 2 x 1.5V AA batteries (not included)
Connector Type
  • M30 x 1.5 (6 connector adapters included)
Dimensions ( W x D x H )
  • 8.2 x 5.5 x 5.5 cm                                                                             
Wireless Standard
  • 433MHz                                                                 
  • CE, RoHS, WEEE
Package Contents
  • 1 x Smart radiator thermostat
  • 1 x Danfoss RA connector adapter
  • 1 x Danfoss RAV connector adapter
  • 1 x Danfoss RAVL connector adapter
  • 1 x M28 x 1.5 connector adapter
  • 1 x Caleffi connector adapter
  • 1 x Giacomini connector adapter
  • 1 x User manual
System Requirements
  • Smartphone running iOS 9 or later, Android 4.1 or later.
  • 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
The thermostat valve can’t control temperature.

Please troubleshoot as follow steps:

1. Make sure the thermostat valve is tightly connected to the radiator.

2. Make sure you are using non-rechargeable 1.5V AA batteries and they are not in low battery level.

3. If you installed with a valve adapter, make sure you use the stick component came along with the package shown in user manual.

4.Factory reset the smart thermostat valve by pressing down the up and down, or + and -, buttons for 5 seconds, and sest up again.

None of the adapters in the package fits my valve.

Please refer to the compatibility guide and find your valve, this guide will help you find the additional adapters you need.

If you are not sure, please send us an email to with the brand, model, and picture of your valve.


Learn More
Smart Radiator Valve Compatibility guide-2104.pdf
Voice Command Instructions_MTS100_1909_EN_DE.pdf