ARA N-FRM Sampler


Measure 24hr TSP, PM10 or PM2.5 


The ARA N-FRM ("Near"FRM) is a portable, rapidly deployable, battery-powered particulate sampling and monitoring device. It delivers Federal Reference Method (FRM) level of performance and integrates many additional functions for unmatched versatility.

The compact-sized sampler collects 24-hour TSP, PM10, or PM2.5 filter samples and can simultaneously measure local meteorological parameters. It can also be equipped with a light scattering particle sensor to log temporal particulate variations. 

For added versatility, the N-FRM can be operated in directional sampling mode and also has the capability of remote turn on. For more utility, the N-FRM can be operated in sensor only mode for long term collection of meteorological and particulate data.


  • Versatile inlet configurations for PM2.5, PM10, or TSP sampling
  • FRM quality 24-hour samples at 16.7 LPM
  • Cost effective at only a fraction of traditional site-based FRM samplers
  • Defensible data logging capabilities for all sampling parameters
  • Deployable compact size and battery power allows remote use
  • Flexible mounting options for rapid deployment
  • Real-time particle sensor option for PM10 and PM2.5
  • Directional sampling capability with optional meteorological sensor
  • Sensor only mode for long term meteorological and dust surveys
  • Easy data retrieval via USB flash drive
  • Programmable with intuitive user interface
  • Low maintenance particulate separators require no grease or oil
  • Rechargeable batteries complete full charge in 1 hour
  • Standard FRM 47mm filter media and cassettes

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