Carbon Monoxide Analyzer Module

Carbon Monoxide Analyzer Module

The CO module is a continuous sensor-based carbon monoxide analyzer used to detect pollutant gas in ambient air. It can also be used to detect point source emissions. The module is designed for use in the AQM 65 compact air monitoring station and AQS mini air quality station.

The carbon monoxide analyzer module incorporates next-generation electrochemical cells with nano-catalyst coated working electrodes that provide higher sensitivities. The lowest possible detection limits are achieved by proprietary signal processing and maintaining the AQM 65 enclosure at a constant temperature.

Just like a traditional analyzer using NDIR gas filter correlation, this sensor-based CO module can be field calibrated using standard calibration equipment and gases. This ensures direct traceability to USEPA (40 CFR Part 53) and EU (2008/50/EC) certified equivalent method instruments.

In contrast to traditional analyzers using NDIR gas filter correlation, the CO module is compact, lightweight, and costs 5x less to own and operate.

Learn more about carbon monoxide (CO) measurement principles, specifications and performance on the CO measurements page.

Module specifications

Sensor Code



0-25 ppm

Display resolution


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

0.02; 1%

Limit of detection (ppm)



3% of reading or 0.05 ppm

Linearity (% of FS)


24 hr drift: Zero (ppm); Span (% of FS)

0.14; 2%