Particulate matter (PM) sensing measures the concentration of tiny solid and liquid particles suspended in air, usually reported as mass per volume (µg/m³) and grouped by size fraction such as PM1, PM2.5 and PM10. These fractions matter because finer particles penetrate deeper into the lungs, making them a core metric for air quality.
LoRaWAN PM devices typically draw an air sample across an optical (laser-scattering) detector, then transmit the readings as a compact uplink at a set interval. The network server decodes the payload into discrete PM values, often alongside temperature and humidity that influence the measurement.
Common deployments include:
- Outdoor and roadside air quality networks
- Indoor environments, schools and offices
- Industrial dust, construction and agriculture monitoring
When comparing devices, weigh:
- Measured size fractions and accuracy range
- Power source and battery life (fans and lasers add draw)
- Enclosure rating (IP) for outdoor use
- Supported regional frequency plans
- Availability of a documented payload codec
Match the size fractions and reporting cadence to your air quality use case.
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Pengy
Device for monitoring of the air quality parameters like air temperature and relative humidity, atmospheric …
Top vendors
Manufacturers with the most particulate matter devices in the catalog.
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Frequently asked questions
What does a LoRaWAN particulate matter sensor measure?
It measures the mass concentration of airborne particles, typically reported in micrograms per cubic meter (µg/m³). Most devices break this down by size fraction, such as PM1, PM2.5 and PM10, and many also report particle counts.
How do LoRaWAN particulate matter sensors transmit readings?
They sample air using an optical (laser-scattering) or similar detection method, then send the values as a small uplink payload over LoRaWAN at a configurable interval. A network server decodes the payload using the device’s codec into PM2.5, PM10 and related fields.
Do particulate matter sensors run on battery?
Some do, but optical PM sensors draw a fan and laser during each measurement, so many models are mains- or solar-powered or use longer reporting intervals to extend battery life. Check the duty cycle and power source before deploying.