Eq 3 max wireless radiator thermostat system eq 3 bc rt trx cyg 4 105936 the eq 3 max wireless radiator thermostat head plus is a component of the max system this plus version of the wireless radiator thermostat has a more comprehensive lcd display and local control it is responsible for regulating single radiators when the room warms up the max radiator thermostat automatically reduces the temperature to save costs for heating all configuration settings are made with the max sof