UEI Combustion Analyzer Kit with IR Printer Breadcrumb Home / Products / Parts / Tools and Instruments / Testing Instruments / Combustion Efficiency Analyzers Obsolete - Superseded To C165KIT Loading... Mfg Part #: C155KIT Brand: UEI CO2 Range: 0 - 2000 PPM O2 Range: 0 - 21% Temp. Range (°F): 20 - 2400