RITTER Apparatebau has manufactured high precision measuring devices and processed thermoplastics for more than 70 years. In addition to modular multigas sensors, biogas batch fermentation systems and THE FERMALYZER, RITTER manufactures gas meters from various high-quality thermoplastics that are used worldwide in research and development laboratories and in industry. These gas meters can also be used for the volumetric measurement of highly aggressive gases with the highest precision.