n-situ O2 gas anayzer Measurement range :0-5%( can be customized) T90 ≤ ±1% FS Repeatability ≤ ±1% FS ExdIICT5 and IP65 No affected by background gas No affected by dust interference Automatic correction of temperature and pressure on the measurement In Situ,continuous,real time Average concentration along the optical path, No moving parts,high reliable No cross interference from background gas species;automatic correction for dust and optical window contamination Applicable to adverse Calibration :3-4 times/year Maintenance:None No spare parts ,only electricity Environments such as high temperature,high pressure ,high dust density,high water vapor density,high flow velocity,high corrosiveness