Set - Fibaro sensor - temperature sensor for radiator head, Bluetooth (FIB-FGBRS-001) and thermostatic smart heads (FIB-THERM-START-ZW5), used to control the heating in the house, with placement on the radiator, compatible with Google Assistant and Amazon Alexa, powered by batteries, connection via Z-Wave, operation via a central unit, compatible with RA-N type valves, RTD-N and M30, control via the application on Android and iOS in Czech and English