MS4-Analysentechnik specialises in robust and highly dynamic gas & particle measuring instruments. For 25 years, we have been offering sales and service as well as application development for a wide range of measurement tasks. Process gas analysis ranges from quality assurance in gas production, through the chemical and food industries, to the automotive industry. Alternative drives and alternative energies have become increasingly important. Selective and detection-sensitive single and multi-component gas analysis supports the optimisation of fuel cells, H2 engines and classic combustion engines and is also used for the certification of biogases, biofuels and green hydrogen. Particle measurement in the exhaust gas of ICE engines of all types includes nanoparticle emission testers and fast measuring devices for particle number and mass.