Profile: Partec GmbH manufactures capillar sensors consisting of 10-100 micrometer sized holes in glass. Our sensors are used in the Partec medicont blood cell counter and other counters, based on the electrical impedance principle. Our CyFlow® ML performs true volumetric absolute counting. Our CyLyse® is newly developed for absolute cell counting. Our microbiology reagents used for analysis of physiological parameters for cells of various microorganisms employed in fermentation processes. Detection of sub-optimal growth conditions at an early stage is a necessary requirement for efficient fermentation control and can best be done by monitoring the growing cells.