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ObservAir® Series

All ObservAir® units are centered around our patented aerosol absorption photometer to monitor black carbon pollution. Particulate matter is collected on a disposable filter tab that must be replaced every ~2 to 20 days (filter life depends on the sensor configuration and sampling conditions - see here). Each ObservAir® carbon analyzer comes standard with:

  • Black carbon sensor 

  • WiFi/Bluetooth/USB communications

  • Relative humidity/Temperature sensor 

  • 16 Gb SD card + MicroUSB cable + Charger

  • Magnetic dust/moisture cover 

  • 10 replacement filter tabs 

Optionally, the ObservAir® includes up to two gas sensors, one wireless communication module, and GPS to fit your AQ application. See details below. 

Technical Overview

ObservAir Monitoring System Technical Specifications
Black Carbon Instrument
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Replacement Filter Tabs

The ObservAir's aerosol absorption photometer collects particulate matter on disposable filter tabs that only cost $1 USD each and take < 30 seconds to swap out. Filters must be replaced every ~2 to 20 days, depending on the average black carbon concentration sampled and flow rate setting. Filter life is shown here for various settings and applications. The ObservAir® manual has instructions for setting sample flow rate to maximize the carbon analyzer's filter life. 

Filter replacement is a breeze!

Basic Enclosure for Outdoor Deployment

Outdoor Air Quality Monitoring System Enclosure

Our Basic Enclosure is fully weather-sealed and insulated for extended outdoor deployments. It easily mounts anywhere and locks securely.  A removable AC cord and integrated DC charger power the sensor from a wall socket. Using this black carbon instrument enclosure, the ObservAir® can operate in rain and other inclement weather, but operating limits (temperature/ humidity) must still be respected. The insulation is removable to accommodate operation in warmer locations. 

Air Quality Instrumentation
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Custom Solutions


Need to measure more? We can customize the ObservAir® carbon analyzer to fit your unique application. We can add nearly any digital sensor to our modular platform, such as a weather station, additional AQ sensors, accelerometer, and more. All data is processed/logged onboard using a powerful microprocessor, and sent wirelessly to our mobile app and PC dashboard services where it can be accessed in real-time. In effect, the ObservAir®  can serve as a turn-key, wireless sensing 'hub'  around which to develop your specific environmental monitoring platform. We also produce custom black carbon instrument enclosures, remote power solutions, and data processing software. 

Custom ObservAir® with Particulate Matter (PM) sensor

Carbon Analyzer