1405-DF TEOM™ Ambient Particulate Monitor

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1405-DF TEOM™ Ambient Particulate Monitor

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The 1405-DF TEOM Monitor simultaneously measures PM Fine (PM-2.5), PM Coarse and PM-10 mass concentrations. Consisting of two Filter Dynamics Measurement Systems (FDMS) and two TEOM mass sensors housed in a single-cabinet, network-ready configuration that includes control system with touch-screen user interface. The TEOM 1405-DF distinguishes itself from other PM measurement methods by utilizing a direct mass measurement that is not subject to measurement uncertainties found in surrogate techniques. It provides a self-referencing, NIST-traceable true mass measurement.



  • Design that meets US and International Particulate Monitoring Regulations
  • Compact, stand alone unit which utilizes a virtual impactor to measure PM Fine (PM-2.5) and PM Coarse concentrations with the ability to output PM-10
  • Touch-screen GUI interface quickly and intuitively accesses system status, TEOM data, settings, and instrument conditions
  • Service screen provides access to software wizards which walk the user through calibration and maintenance procedures with detailed instructions and pictures

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