Thermo Fisher 42i (NO-NO2-NOx) Chemiluminescent Gas Analyzer


NO, NO2 & NOx


The Thermo Scientificâ„¢ Model 42i NO-NO2-NOx Analyzer utilizes chemiluminescence technology to measure the amount of nitrogen oxides in emissions and ambient air, from sub-ppb levels up to 100ppm. It is a single chamber, single photomultiplier tube design that cycles between the NO and NOx modes. The Model 42i NO-NO2-NOx Analyzer is also available with an oxygen sensor module.


  • Standard dual range and auto ranges
  • Five-second response time
  • Temperature and pressure correction
  • User settable alarm levels for concentration
  • Ethernet connectivity for efficient remote access
  • Enhanced user interface with one button programming and large display screen
  • Flash memory for increased data storage and user downloadable software
  • Enhanced electronics design optimizes product commonality

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Thermo Fisher Scientific Australia
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