Gases have become indispensable in most industrial processes. In many cases, they are used as carriers or are produced during combustion or other chemical reactions. Monitoring these gases and controlling the processes as efficiently as possible is enormously important, especially for the protection of people and the environment. For this reason, extensive regulations exist in many areas to limit emissions. In some industries, however, the loss of these gases also plays a financial role. Therefore, appropriate measuring equipment is always beneficial from a long-term business point of view.