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MetOne - ES-405

General Description

The MetOne ES-405 Particulate Profiler is a near reference air quality sensor that provides real-time measurements of PM1.0, PM2.5 and PM­10 mass concentrations. The sensor is equipped with a heated inlet to mitigate the effect of relative humidity. Data is retrieved via USB cable and the software provided by MetOne. External meteorological sensors can be connected to the sensor.

Principle of Operation

The MetOne ES-405 sensor provides real-time particulate matter measurement through right angle laser light scattering. Sample is drawn into the detector chamber where it passes through an intense laser beam located at right angles to the flow and scatters light. The scattered light is collected onto a photodiode detector. The output of the detector is analyzed to calculate the number and size of the particles then mathematically processed to provide indicative mass concentrations.


  • Dimensions: 8 (L) x 6 (W) x 20 (H) inch
  • Weight: 8.5 lbs without power supply; 10 lbs with power supply
  • Power supply: Yes, 100-240 VAC input, 50/60Hz, 12 VDC. Max operating current: 1300mA
  • Battery: No
  • Clock function: Yes, on display
  • Sampling mechanism: Pump
  • Environmental operating conditions: 0 - 50°C and 0 - 95% RH, non-condensing
  • Internal data logging: Yes
  • Data communication: USB. GSM available as optional upgrade
  • Data logging/retrieval: Data is retrieved using USB cable and software from MetOne
  • Weatherproof: Yes


  • Ambient air quality
  • Dust monitoring
  • Environmental monitoring
  • Fenceline monitoring
  • Public and work place monitoring
  • Mining and ore processing
  • Smart cities
  • Tunnel monitoring
  • Industrial/occupational hygiene
  • Military and homeland security
  • Emergency response

Developer's Product Webpage

    South Coast Air Quality Management District

    21865 Copley Dr, Diamond Bar, CA 91765



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