Portable Flue Gas Analyzer can effectively analyze various gases like oxygen, carbon monoxide, carbon dioxide, hydrogen sulfide, sulphur oxides and nitrogen oxides. The Flue Gas Analyzer is constructed of a control unit, an analyser box and a flue gas probe. The Flue Gas Analyzer is mainly used to check efficiency in a combustion process as well as emission monitoring. Portable Flue Gas Analyzer is offered in a compact design that facilitates ease of installation.