The Helios EUR 6 C is an electronic automatic regulator designed for one-phase fans, using the phase chamfer principle for precise control. It allows regulation based on pressure difference, airflow speed, and temperature, with adjustable minimum and maximum set values. The device features a main switch with off, automatic, and on positions. Housed in a durable light grey polymer casing with a transparent lid, it is suitable for surface mounting and provides protection class IP54, ensuring reliable operation even in demanding environments.