Ozone Analyzer Module

Ozone Analyzer Module

Ozone (O3) is one of six criteria air pollutants identified by the U.S. EPA and is monitored extensively around the world by regulatory agencies.

Ozone is formed naturally in the stratosphere by the reaction of oxygen (O2) and UV light. Ozone stratosphere absorbs harmful deep UV light and protects the biosphere on the ground.

Ozone can also be formed at ground level by a complex reaction between UV light, NOx, and volatile organic compounds (VOCs), which come from anthropogenic sources such as vehicles and industrial emissions. Ozone at ground level is harmful to vegetation and humans which is why it is monitored.

Learn more about ozone measurement principles, specifications and performance on the ozone measurements page.

Module specifications

Sensor Code


Range (ppb)

0 - 500

Display Resolution (ppb)


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

<1; 1%

Limit of Detection (ppb)



2% of reading or 2 ppb

Linearity (% of FS)


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

1; 0.2%