Our COSA XENTAUR™ 9610 CXc™ continuous BTU Calorimeter measures Wobbe Index, BTU/Heating Value and CARI (Combustion Air Requirement Index).  Key advantages of this calorimeter are its insensitivity to changes in ambient temperature, a very fast response with the ability to measure gases with BTU values down to zero and the measurement of the Combustion Air Requirement Index besides Wobbe Index and Heating Value.  Using our 9610 CXc calorimeter continuous gas analyzers with expert design make BTU analysis a definitive money saving tool!