Design thermostatic control head with remote capillary liquid sensor. M30x1,5 threaded connection. In combination with thermostatic-convertible valves, it controls the room temperature and automatically modulates the hot water inlet to the heating terminal, keeping the room temperature constant. Adjustment range 8-30 °C. Antifreeze function: the control head detects a temperature decrease lower than 8 °C and opens the valve to let hot water enter, avoiding pipes and heating body from freezing. Equipped with locking and adjustment range limiting mechanism. The sensor is placed inside the remote bulb, connected to the head piston through the capillary. It is used in cases where the traditional thermostatic control head, with sensor integrated in the control head, has difficulty to correctly detect the room temperature (radiator placed behind curtains, under protective covers, underneath shelves etc).