The Helios Fans KWL-NHR 250 is a low-temperature reheating register designed for integration with the KWL HB 250 WW HygroBox in systems utilizing low-temperature heating. This unit features a warm water heat exchanger with a DN 160 mm pipe connection, ensuring efficient post-heating of supply air. It also comes equipped with an external PT1000 temperature sensor for precise temperature monitoring and control. Ideal for improving comfort levels in ventilation systems by reheating incoming air in energy-efficient installations.