MCZ has more than 20 years of experience in the construction and manufacture of apparatuses and systems in the area of gas analysis and related fields. MCZ develops and manufacturers devices and systems for end customers as well as OEM systems. The main business is the environmental monitoring. We manufacture , calibration systems for gas analyzers like gas diluters, ozone generators, permeation systems, static volumetric injection systems. For the calibration of ozone analyzers we produce a primary standard reference photometer (SRP), For zero and process gas treatment we delivere zero gas systems with catalytical air purifiers.