Model 447 Atmospheric NOx Analyser

NOx analyser for ambient applications. Available in high sensitivity configuration. Optical permeation device for daily calibration checking.

Model 447 Atmospheric NOx Analyser

Key Benefits:

  • Chemi-luminescent instrument
  • Two range options: 0-1/2/5/10 ppm or 0-0.1/0.2/0.5/1.0 ppm displaying NO,NO2 and NOx
  • Meets or exceeds EPA requirements and is UK National Environment Centre (NETCEN) approved.


  • Ambient air monitoring