The Emerson Rosemount™ 6888A In Situ Oxygen Analyzer provide accurate measurement of the oxygen remaining in the flue gases from any combustion process. This allows you to achieve optimal combustion efficiency by maintaining the ideal level of oxygen in the flue gases and the lowest level of NOX, CO and CO2. This easy-to-use and integrated solution was designed with the user in mind and contains no moving parts or sampling apparatus', resulting in an extremely reliable probe that requires very little maintenance.