Nitric Oxide NO

Nitric oxide (NO) is a significant atmospheric pollutant, primarily produced by high-temperature combustion processes. It plays a crucial role in the formation of both smog and acid rain and is also a precursor to nitrogen dioxide (NO2), another harmful pollutant. Accurate monitoring of nitric oxide is essential for environmental compliance, health safety, and improving air quality.

Signal Group’s nitric oxide analysers are designed to provide precise, reliable, and continuous monitoring, ensuring adherence to environmental regulations and aiding in pollution control strategies.


Chemiluminescent Detector (CLD) NOX analysers for NO/NO2/NOx measurement in engine emissions, combustion studies, process plant, Emission monitoring and medical gas production.

very low quenching from CO2 and H2O

electronic proportional flow controllers

special ozone generator uses air as feed gas

long life NOx converter (5 years)


Multi-gas NDIR analyser series for industrial gas applications, combustion research, emissions monitoring and gas purity measurement (with optional oxygen analyser).

new: optional wireless tablet

5 user-configurable ranges + autorange per channel

electronic pressure & temperature compensation

rotating gas filter design for minimal cross sensitivty

Your Expert Partner in NO Monitoring — Signal Group

With Signal Group’s nitric oxide analysers, you gain a dependable tool for monitoring this critical pollutant. Our technology ensures your operations remain safe, compliant, and efficient.

Contact us today to discover how our solutions can be integrated into your environmental management system and help you meet your regulatory and safety goals.