Master 400 is a new desktop gas analysis system launched by Altamira lnstruments (AMl lnstruments) in 2022.Qualitative or quantitative analysis of gas components on-line or off-line related to gas can be realized. it features an intuitive desicn precise measurements, fast results and is suitable for today's requirements in many application fields. lt can be used in various characterization and analvsis instruments such as chemical adsorption instrument. micro-reactor deyice. competitiveadsorption instrument, thermogravimetric analyzer etc.