The HM3301 particulate matter sensor is designed to measure particulate matter concentrations in ambient air. Using an optical backscatter method, the module measures particle levels and outputs the PM1.0, PM2.5 and PM10 particulate matter mass concentrations in µg/m³.

The measured values can be recorded continuously and transmitted to a connected microcontroller via the I²C interface. This makes the sensor ideal for air quality measurements, environmental monitoring, indoor air analysis, as well as microcontroller and IoT Projects.

Thanks to its compact design and digital interface, the module can be easily integrated into existing systems. After a short start-up time, the sensor provides current measurement data for further processing, display or logging.