thT is a new CAREL thermostat for temperature and humidity in control domestic or commercial environments, fitted with a simple and intuitive user interface. The device's compact size make it ideal for any type of space, and is perfect both as the user interface (HMI) for heat pumps, rooftop units, air handling units, etc. and as the zone controller terminal for centralized installations. It can operate in stand-alone mode, as a room thermostat and can be connected via a Modbus® RS485 serial network to a programmable controllers, for various applications (e.g. as zone controller in radiant systems).