Description
The ThermoSphere T-MO is a smart Wi-Fi and Bluetooth touchscreen thermostat for electric underfloor heating, with app-based scheduling, active power metering and optional professional remote commissioning. Available in White (T-MO1) or Matt Black (T-MO1B).
Key Benefits
- Wi-Fi (2.4GHz) and Bluetooth connectivity, controlled via the free T-MO app or the touch display on the unit
- Clear 14-segment LED display with adjustable active and standby brightness
- Built-in ambient temperature sensor, plus support for 2 wired NTC10K floor/external sensors
- ZeroX™ technology switches the relay at 0V for extended lifespan
- Active power and energy metering, with kWh consumption tracking in the app
- Open window detection automatically reduces the setpoint if a rapid temperature drop is sensed
- Copy and paste schedules between days and between multiple thermostats
- Relay mode available for simple on/off control, including electric towel rails
- Open API for integration with BMS and other compatible control platforms
- OTA firmware updates and optional professional remote commissioning
Applications
Suited to bathrooms, kitchens, ensuites and any room with electric underfloor heating cable, mesh or foil, where installers or homeowners want app-based scheduling, energy monitoring and remote support alongside simple on-unit control.
Performance & Features
T-MO operates in Heat, Cool or Eco mode, regulating via hysteresis or PWM from the internal sensor, a wired floor sensor, a wired external sensor, or a combination. DirectLink and BlueFusion let multiple T-MO units share sensor data or switch together, and the Open API and OTA updates keep the thermostat ready for future features.
Compatibility
Compatible with the full ThermoSphere underfloor heating cable, mesh and foil ranges, and with NTC 6.8, 10 (default), 12, 15, 22, 33, 47 or 100kΩ @ 25°C sensors. Fits a standard 35mm deep back box.
Supplied by Millcot as part of our full ThermoSphere underfloor heating range.
Technical Specifications
- Supply voltage: 230VAC 50Hz
- Maximum load: 16A (3600W resistive load)
- Connectivity: Wi-Fi 2.4GHz and BLE
- Ambient/regulation temperature range: 5°C to 40°C
- Size: W84 x H84 x D18mm
- Protection rating: IP21
- Mounting: 35mm deep back box
- Sensors: built-in ambient sensor plus support for 2x external NTC10K floor/external sensors
- Compatible sensor values: NTC 6.8, 10 (default), 12, 15, 22, 33, 47, 100kΩ @ 25°C
- Country of origin: China
- Approvals: UKCA, CE, PSTI
- Warranty: 5 years
What's Included
- 1 x ThermoSphere T-MO thermostat
- 1 x NTC10K floor sensor probe (3m)
- 2 x Fixing screws
- 1 x Quick start guide
Downloads
- ThermoSphere T-MO White Data Sheet (PDF)
- ThermoSphere T-MO Black Data Sheet (PDF)
- ThermoSphere T-MO Installation Guide (PDF)
FAQs
Can I control it without the app?
Yes, the touch display on the front of the unit gives full local control; the app adds scheduling, remote access and energy monitoring.
Can it control a towel rail as well as underfloor heating?
Yes, T-MO can be set to Relay mode for simple on/off control of a towel rail or similar load, in addition to its normal thermostat function for underfloor heating.
Do I need Wi-Fi to use it?
No, it can be added and controlled over Bluetooth if Wi-Fi isn't available, though you'll need to stay in Bluetooth range. Wi-Fi unlocks remote access and app scheduling from anywhere.
What sensors does it support?
A built-in ambient sensor plus up to two wired NTC sensors (floor and/or external), selectable between several NTC resistance values.
Is professional setup available?
Yes, once connected to Wi-Fi you can book a remote commissioning call so a ThermoSphere expert sets up your schedule and settings for you.
Does this need a deep back box?
Yes, it requires a standard 35mm deep back box for mounting.