T-MT Wired Wifi Thermostat

Herschel T-MT Mains powered Wifi thermostat

Original price was: £89.00.Current price is: £87.00.

Herschel T-MT is a mains powered compact thermostat control designed to work exclusively with Herschel XLS heaters with their built-in SMART-R receiver. T-MT also has Wifi capability to allow you to control your heating remotely via the Smartlife App or by voice control using Alexa or Google Assistant.


T-MT is wired directly to the mains via a recessed back box or can be powered by a micro USB cable (supplied) and operate stand alone (e.g. can be placed on a desk or set of shelves). T-MT should be placed where it can sense and manage the temperature in the room without influence from drafts or other hot or cold objects.

The T-MT thermostat will operate your Herschel XLS heater(s) by turning them on if the room temperature is lower than the desired temperature and turning them off once the desired temperature is reached. The T-MT is easy to operate, featuring a large digital display and keypad and incorporates the latest EcoDesign energy-saving features including Herschel’s open window technology and an adaptive start function ensuring your room is always at the right temperature with the least energy use. It also logs the energy use of the heaters under its control.

The T-MT has a keypad locking feature to prevent unauthorised tampering making it suitable for commercial applications such as hotels, care homes, student accommodation and let properties.  T-MT can control one or more Herschel Select XLS heater panels.

Note: The T-MT will only work with Herschel XLS heaters. It is not possible to operate the T-MT with any other brand of infrared heater.

Features include:

  • 0.1°C accuracy
  • 7 x 1 day programmable, 4 periods per day;
  • Smart, Manual override and Holiday modes;
  • Window Open Function (shutting off the heating if a rapid drop in temperature is detected until you override this or wait 1 hour);
  • Adaptive Start (turns heating on earlier than programmed if the next programmed temperature is 5°C more than the current temperature);
  • Energy Monitoring;
  • Keypad lock;
  • Works with Smartlife App enabling voice control using Alexa or Google Assistant.

Other Features:

  • Radio Frequency 433Mhz;
  • Connects to 2.4GHz Wifi networks;
  • 35m wireless range;
  • 12 month warranty*;
  • Herschel Select XLS Infrared heaters together with the XLS Controls are fully compliant with EC Directive 2009/125/EC for Ecodesign of local space heaters.

Technical Information:

Frequency433 MHz RF; 2.4GHz Wifi
Power Supply120 – 240VAC or Micro USB
Set Point Range5~40℃
Accuracy+/- 0.1℃
Protection ClassIPX0

* Herschel XLS controls will only work with Herschel Select XLS heaters.  

Click here to download the T-MT Instructions.


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