Fantini Cosmi CH121 built-in electronic microprocessor room thermostatFantini Cosmi CH121 built in electronic microprocessor room thermostat The CH121 room thermostat is part of the range of accessories for air conditioning and heating designed by the Fantini Cosmi brand in order to make the temperature of the rooms intuitive, stable and as comfortable as possible: this product in fact allows you to keep the temperature of your domestic spaces constant and always perfectly balanced . The CH121 Fantini Cosmi room