The Helios KWL-SL eC 5m is a 4‑core connection cable designed for efficient communication between Helios KWL ventilation units and control or sensor modules. Measuring 5 meters in length, it enables seamless connection of KWL BE ECO or TOUCH control elements, as well as KWL-CO2 eC, KWL-FTF eC, and KWL-VOC eC room sensors. This cable ensures reliable data transfer for smooth operation and integration within your ventilation system.