The Wohler 5996 A 550 Flue Gas Emissions Analyzer is as tough as cast iron, but as easy to operate as a smartphone. A tap of your finger on the A550 Industrial is all that is required to perform a complete analysis and inspection of boilers and burners. The Flue Gas Emissions Analyzer is designed to be used in tough industrial heat processes. The in-stack stainless steel sinter-filter probe protects the analyzer against heavy dust loads.