PCA Portable Combustion Analyzer The PCA analyzer measures and displays five gas O2, draft, NOx, temperatures and CO. At the same time it calculates and displays combustion efficiency, CO2, excess air and CO air free. 20 character, 4 line alpha-numeric with backlight display. 4-AA alkaline batteries (included). Optional 120V adapter for line operation.
Single Gas Analyzers Can quickly measure and display levels of carbon monoxide (CO), oxides of nitrogen (NOx), sulfur dioxide (SO2) or oxygen (O2).