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PM Monitor - iMonPM

General Description

The iMonPM sensor manufactured by PM Monitor, a division of GRIMM Aerosol Canada, is an air quality monitoring device that provides real-time measurements of PM1.0, PM2.5 and PM­10 mass concentrations, and environmental parameters such as temperature and relative humidity as well as internal temperature and relative humidity measurements. Data can be visualized and accessed on the PM Monitor dashboard.

Principle of Operation

The iMonPM sensor uses a Wuhan Cubic PM3006S laser particle counter as the PM raw sensor, with a customized heated inlet. The sensor measures quantity per unit volume for different particle size and calculate the PM1.0, PM2.5 and PM10 mass in μg/m3 via mathematical algorithm and scientific calibration. The iMonPM uses a reflector and straight linear path to improve low detection limit.


  • Dimensions: 280 (H) x 145 (W) x 95 (D) mm
  • Weight: 775 g
  • Power supply: Yes, 12VDC via 110-240 AC adapter. 1.0A, IP68. Power consumption max w/ heater: 7.5W
  • Battery: N/A
  • Clock function: N/A
  • Sampling mechanism: fan
  • Environmental operating conditions: -40 - 85°C and 0 - 100% RH
  • Internal data logging: Yes with SD card
  • Data communication: WiFi or Cellular (Cellular used for the evaluation)
  • Data logging/retrieval: Data is sent to cloud and downloaded via PM Monitor’s dashboard
  • Weatherproof: Yes


  • Outdoor air quality monitoring
  • Near FEM continuous particle monitoring

Developer's Product Webpage

    South Coast Air Quality Management District

    21865 Copley Dr, Diamond Bar, CA 91765



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