Non-Dispersive Infrared Gas Analyzers (NDIR)

NDIR Technology

Non-Dispersive Infrared Gas Analyzers (NDIR) allow for high sensitivity measurement of a variety of gas components including CO2, CO, CH4, NO, and SO2. Additionally, an O2 measurement can be made with a built-in paramagnetic analyzer or external zirconia analyzer.

  • Infrared Gas Analyzer IR202

    The model IR202 is capable of measuring concentration of CO2, CO, CH4, SO2, and NO components in process gas by using the non-dispersive infrared method (NDIR), while measuring O2 with the paramagnetic or zirconia method. It also provides high stability over long periods of time.
    A maximum of 4 components including O2 (or up to 3 components without O2 measurement) are simultaneously measurable.

    See More


Non-Dispersive Infrared Analyzer Principle

NDIR gas analysis operating principle: Gases absorb radiation in specific infrared wavelength ranges. A non-dispersive infrared sensor measures gas molecule concentrations. Infrared light passes through a container of gas toward a non-dispersive infrared detector to determine the concentration based on how much of the filtered light wavelength the gas absorbs.

Looking for more information on our people, technology and solutions?

Contact Us