Aeroqual AQS1 Urban Air Quality Monitor

The AQS 1 Urban Air Quality Monitor provides simultaneous measurement of multiple particle fractions (TSP, PM10, PM4, PM2.5 and PM1), nitrogen dioxide (NO2), ozone (O3), carbon monoxide (CO), hydrogen sulfide (H2S) and sulfur dioxide (SO2). Measures and reports data in 1-minute intervals with user selectable averaging, delivering highly accurate results with very strong correlation to US EPA reference analyzers. Suitable for use on a range of projects, including urban and national air monitoring networks, community exposure studies, and environmental impact assessments.


The AQS Series is designed for short and long-term air quality monitoring studies. It comes equipped with cutting-edge air monitoring software and is affordable enough to be deployed in small networks for a range of outdoor applications. Measures and reports data in 1-minute intervals with user-selectable averaging, delivering highly accurate results with excellent correlation to US EPA reference analyzers. Designed to be calibrated in situ using reference materials, ensuring data is traceable back to international standards.

Features a modular design, which can be upgraded at any time to measure additional parameters as needed. All module data is available to view through our air monitoring software, Aeroqual Cloud. Choose from several parameters

Key technology of the AQS Series

Pumped Sampling System

Provides a steady flow of air to the sensor modules as filters help protect sensors from airborne impurities, extending the instrument’s operating life.

Automatic Baseline Correction (ABC)

Pioneered by Aeroqual, ABC sees the automatic correction of the ‘zero”baseline every 60 seconds. Corrects for cross interferences and sensor drift – two of the biggest problems for sensor-based monitors

Interference-Free Measurement

The NO2 module design incoporates an electrochemical sensor with Aeroqual’s Automatic Baseline Correction (ABC) Technology, maintaining measurement stability. An intergrated O3 filter guards against interference, so you know exactly how much NO2 is present.

Robust PM Sensing

The integrated nephelometer is proven to last years in the field and is coupled with a pumped sampling system and inlet heater to correct for humidity interference.

Factory And Field Calibration

The AQS Series is field calibrated using the same reference materials as a U.6 EPA / EU-Certified analyzer. Sensor modules are calibrated against high-purity gas standards prepared under ISO 6143, ensuring traceability to reference materials from National Metrology Institutes

Aeroqual Cloud Software

Go beyond simple data acquisition with remote two-way communication for better data and more efficient operation

A compact, high-performing air quality monitor providing simultaneous measurement of particulate matter and up to three gaseous pollutants.

  • Particulate matter:
    PM10, PM2.5, PM1, TSP
  • Gases:
    VOCs, O3, NO2
  • Environmental:
    Temperature, humidity, noise, barometric pressure, precipitation, solar radiation, wind speed and direction.

Aeroqual AQS Series Model
– AQS 1 Construction Air Quality Monitor
– AQS 1 Remediation Air Quality Monitor
– AQS 1 Urban Air Quality Monitor
– AQS 1 Smog Monitor
– AQS 1 Ambient Ozone Monitor

Additional information

Weight 100 g


Datasheet AQS 1

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