Rosemount Analytical oxygen transmitters and analyzers quantify the amount of oxygen in a sample. Oxygen is integral to combustion and a powerful corrosive that can contaminate or create hazardous conditions. The 4000 or 6888 In-Situ oxygen transmitters, as well as the 5081FG or CX1100 In-Situ oxygen analyzers, will provide reliable results with low maintenance, even in extreme environments.