External CO2 sensor

Additional sensor to register the external CO2 concentration in the air. An internal CO2 sensor is installed in all units as standard. It is installed outside the ventilation unit. Depending on the CO2 concentration, the ventilation unit adapts the volumes of air to suit demand. If the CO2 concentration in the air improves, the speed of the ventilation unit fans decreases. If the CO2 concentration deteriorates, the speed of the ventilation unit fans increases.