pmx in NEMA enclosure
pmx circuit boardspmx-rxpmx-tx


Particulate Monitor

  • 99 levels of relative light transmission
  • Up to 30 ft. operation
  • High resolution analog output
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The PMX Particulate Monitor can be used in a wide range of applications to detect changes in light transmission up to a distance of 30 ft. The light transmission is affected by smoke, dust and other airborne particulates.

The PMX is available in two styles: a board only configuration intended for integration into OEM equipment and in NEMA 4X housings for other applications that require a sealed enclosure.

The sensor provides a 2 digit display of signal strength for quick and easy system integration, PNP/NPN output with automatic selection and a 0-5V analog output for remote monitoring.

The PMX Particulate Monitor provides a cost effective solution to log light transmission variations and take action, such as activating exhaust fans, in industrial and commercial ventilation applications.


  • Demand control kitchen ventilation (DCKV)
  • Ventilation systems
  • Commercial cooking hoods
  • Factory venting
  • Exhaust systems
  • Environmental monitoring
  • Relative light transmission units display
  • High-resolution analog output allows monitoring of light transmission by external system
  • High detection speed with 100 microsecond discrete output response
  • Calibration feature allows manual user sensitivity adjustment
  • Unique numerical display indicates measured levels, making process set-up easy
  • LED adjustment
Model Number Display Range Sensitivity Gain Selections Operating
Discrete Output Analog Output
PMX 0-99 High Adjustable Up to 30 ft. PNP/NPN 0-5V

White nylon liquid tight strain relief connectors
set of 2

Adobe_PDF_file_icon_32x32Spec Sheet