Oxygen meter, BI-2000 is an in-situ Zirconia Oxygen Analyzer. - This instrument is specially designed for oxygen measurement in combustion processes, typically to improve the combustion efficiency by monitoring and controlling excess oxygen in flue gases. BI-2000 Zirconia Oxygen Analyzer is accurate, consistent and reliable even for close loop control applications. The characteristic of zirconium cell enables the oxygen analyzer to provide exceptional sensitivity at low oxygen concentration.