<p>Nitrogen Oxides Analyzer Module</p>

Nitrogen Oxides Analyzer Module

Nitrogen oxides (NOx) are a group of highly reactive and toxic gases that are closely monitored by regulatory agencies worldwide due to their environmental and health impacts. These gases are formed by the chemical reaction between nitrogen and oxygen during high-temperature combustion processes. The primary sources of NOx emissions are the burning of fossil fuels in vehicles, power plants, and industrial operations.

NOx often appears as a brownish gas and contributes to the formation of ground-level ozone and smog, which both have detrimental effects on air quality and human health. Additionally, NOx plays a significant role in the formation of acid rain, which can damage ecosystems, soil, and water bodies.

Learn more about NOx measurement principles, specifications and performance on the nitrogen oxides measurement page.

Module specifications

Sensor Code


Range (ppb)

0 - 500

Display Resolution (ppb)


Noise: Zero (ppb); Span (% of reading)

<1; 1%

Limit of Detection (ppb)



3% of reading or 3 ppb

Linearity (% of FS)


24 hr Drift: Zero (ppb); Span (% of FS)

1; 0.2%