The GPR-2800 series of process oxygen analyzers allows measurements of 0-1 up to 0-21% O2 in hazardous areas. Combined with our modular sample system, this O2 analyzer will suit most applications for process customers around the world. Analytical Industries' proprietary long-life oxygen sensor technology offers maintenance-free sensor operation of up to 32 months for the low cost of ownership. The industry-proven quality of our electrochemical oxygen sensors ensures reliable oxygen content measurements even with high carbon dioxide backgrounds.