The C155 Combustion System Analyzer from UEi features one sensor for CO, CO2 and O2 measurement. It lowers operational costs by eliminating the habitual need to replace the O2 sensor annually. Backed by an unprecedented five-year warranty, the C155 system offers greater dependability and high accuracy in the field. For more information please contact your nearest F.W. Webb location or view the C155 spec sheet, then conveniently order online.