The Helios SWE is a precision airflow monitoring sensor designed for use in ventilation shafts and ductwork. It continuously measures the airflow velocity and compares it against a preset threshold, which can be adjusted between 1 and 20 m/s. When the airflow reaches or exceeds the defined value, the integrated relay activates to either reduce or completely shut off the connected system, operating on either working or standby current.
The unit features two integrated LEDs for clear visual indication of operating status. Installation is simple, with the device designed to be mounted inside a standard junction box and secured on 35 mm DIN rails. The SWE is ideal for ensuring safe and efficient airflow control in HVAC systems, helping to optimize performance and energy use.