The Indoor Air Quality Transmitter provides multiple sensing options using high-quality sensors for temperature, humidity, CO, CO2, PM2.5, PM10, VOC..
Easily monitor your indoor air quality with the  to ensure that you're breathing only clean, healthful air in your home, office, and more – and  compare your indoor and outdoor air in real time.

Particulate Matter Sampler is the most common AQI measurement device. It uses light to see how much of the small particles, called PM 2.5, are in the air.
Working of the Devices Used to Measure Particulate Matter in Air
There are many tools to measure particulate matter. The selection of the right method depends on different things. 
We must choose the right tool to measure particulate matter in the air. We need to see many things to choose the right tool to measure air pollution. We need to consider if the tool can measure particulate matter in real-time. Also, we see if the tool needs gas dilution. We also see how sensitive the tool is and what range of particle sizes it can measure. We check the other pros and cons of the tool as well. 
We measure PM 2.5 using Particulate Matter Sampler. Most samplers use Beta Attenuation or light scattering to measure the concentration of Particulate Matter 2.5 in air.
These tools have different capabilities. They help in measuring air pollution in real time. They also help in measuring particles of specific sizes.
There are many perfect tools for measuring tiny bits of pollution in the air. The best tool depends on what you want to measure and what kind of tool you have available with the right features.
When selecting a tool to measure air pollution, we must consider how durable it is, how frequently it needs maintenance, and how easy it is to transport.