(NO-NO2-NOx) Analyzer

42i with datasheet

Measure levels of nitrogen oxide (NO-NO2-NOx) in the emissions from a source using chemiluminescent technology with the Thermo Scientific™ Model 42i NO-NO2-NOx Analyzer.

The flagship product in the Thermo Scientific™ iSeries line, the Model 42i is the most recognized NOx analyzer in the industry.


  • Standard dual range and auto ranges
  • Five-second response time
  • Temperature and pressure correction
  • User settable alarm levels for concentration

Application NotesTypeLanguage
 42i (NO-NO2-NOx) Analyzer-Datasheet pdf English US 331 KB
 42i (NO-NO2-NOx) Analyzer with Oxygen Sensor-Datasheet pdf English US 372 KB
 42i-D (NO-NO2-NOx) Analyzer-Datasheet pdf English US 344 KB
 42i-HL (NO-NO2-NOx) Analyzer-Datasheet pdf English US 382 KB