Opsis has a full product portfolio for measurements of gases in a range of different applications. It includes complete systems for air quality monitoring, continuous emissions monitoring and process control that meets the international requirements for a monitoring system. Besides DOAS products, Opsis offers e.g. TDL systems, Oxygen analysers and Hg analysers. The portfolio also includes flexible and cost-effective software for data management and air quality modelling. Click on the products to the right for further information.