VELUX Central Switch of the VELUX ACTIVE KLN 300 System

An accessory to the VELUX ACTIVE indoor environment control unit, the KLN 300 central switch is designed to be located close to the entrance door . So that when you leave the house, you can simply close all the windows with one press to prevent a stranger from entering or causing damage caused by weather and weather conditions. The central exit switch KLN 300 closes the VELUX INTEGRA windows, but leaves the ventilation with a safety ventilation flap. Your house will be safe and still ventilated.