  We introduce a cost-efficient, and open-source measurement system for
measuring and monitoring indoor air quality, aerosol concentration, dust
contamination, and comfort-relevant quantities. The system allows to access
these quantities simultaneously at multiple sites. The software architecture is
described along with the hardware set-up including an overview of the supported
measurement transducers so far. The system allows flexible adaptation on
laboratory-scales as well as on large-scales like aircraft cabins, vehicles,
buildings, and passenger compartments in general.
