Two of the most emerging fuel sources today are natural gas (NG) and biogas. In NG, there is over 1M km of pipelines across the world and more than 2k NG processing plants (refineries and petrochemicals), with more than 40k measurement points which are currently monitored using ineffective and inefficient methods which lead to extended costs and long periods of downtime. Biogas is a type of fuel which is naturally produced from the decomposition of organic waste. Producing and enabling highest quality gas for fuels and production inputs have numerous economic advantages. Better fuel and production inputs means less greenhouse gas emissions, and cleaner combustion which leads less wear and tear on an engine as a result of less corrosion or debris build up. This directly translates to lower maintenance costs and a significantly lower risk of unexpected failures, leading to less lost time and maximum productivity. Molecular analysis can produce these huge cost savings, but its market penetration is hindered by the lack of a suitable real-time, highly accurate sensing solution. During the project, optiQGain will upgrade the sensor functionality to include additional gases for analysis, before scaling up the production with a SICK (CMO) and then demonstrating the system with natural gas and biogas companies. Once the product has been tested and validated in a relevant environment, optiQGain will file additional patents and register the product with the proper CE and ATEX certifications for market launch.