Although measuring radon gas was one of the initial objectives of the project—due to its high risk in indoor environments and its significant presence in the northern and central regions of Portugal—we decided not to integrate this type of sensor in the current version of the prototype due to economic feasibility constraints.
Different solutions available on the market were analyzed. Some offer lower costs but rely on detection methods that require prolonged exposure periods—typically several months—to ensure reliable results, which makes them unsuitable for rapid testing and system validation phases. On the other hand, there are sensors capable of providing faster and more accurate measurements within a few hours; however, these come at significantly higher costs, exceeding the project’s defined budget.
Therefore, the integration of a radon sensor is considered a valuable addition for future versions of the system, particularly for continuous indoor air quality monitoring applications, provided that the identified technical and economic limitations are overcome.
Product reference: https://gvzcomp.it/component/djcatalog2/?format=raw&task=download&fid=2282 Supplier: GVZ Components Estimated price: €280 (quotation received via email)