The only aerosol spectrometer for high altitudes!This pressure-independent aerosol spectrometer was especially developed for measurements in high altitudes and can be deployed per helium balloon or ultra-light airplanes and even up to jet airplanes. The heated sample head, especially adapted for the flying speed, and the integrated differential pressure sensor, combined with an external pump, provides full flexibility when measuring the size distribution of aerosol particles in the troposphere – regardless of the prevailing atmospheric pressure conditions. This is unique in the world-wide market, another one of Grimm’s high-tech devices.

The pressure-independent aerosol spectrometer 11-S detects every single airborne particle (single particle count) from 0.25 to 32 µm with highest precision in real-time, and classifies the particles in 31 different size channels. Every aerosol particle is detected by a laser inside the optical measuring cell. In order to guarantee the continuous precision of the measurement, and to protect the measuring cell from impurities, part of the constant 1.2 l/min sample volume flow is filtered as rinsing air and brought back into the measuring device. Two automatic flow controller – integrated in the device – ensure a pressure-independent and steady volume flow of sample air and rinsing air. The readiness for use of the models 11-S is checked at each start-up automatically.


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Pressure-Independent Aerosol Spectrometer 11-S

  • Brand: Matter Aerosol AG
  • Product Code: Pressure-Independent Aerosol Spectrometer 11-S
  • Availability: In Stock