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Fieldpiece SOX3 Combustion Check
The SOX3 Combustion Check is a great tool to easily tune furnaces when
a full combustion analysis isn't necessary. Designed specifically for
HVACR pros, the SOX3 provides all the essential measurements needed to
tune most combustion equipment. It directly measures %O2 and flue
temperature, and calculates %CO2, %Excess Air, and combustion
efficiency.
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