Air Gradient Open Air Monitor O-1PST 

The Open Air (Model O-1PST) lets you monitor outdoor air quality with precision. It measures PM1, PM2.5, PM10, CO2, TVOCs, NOX, temperature, and humidity, giving a complete view of your environment.

Its rare CO2 sensor detects emission sources that may not produce visible particulates, offering deeper pollution insights.

Fully open-source and customizable, it adapts to your needs, making it ideal for researchers, innovators, and environmental health enthusiasts.