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TSI 9500

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The TSI AEROTRAK9500 Portable Particle Counter claims to offer the best-in-class for features and versatility. It performs ISO 14644-1 classifications and complete certifications of EU GMP facilities by sampling 1 m3 of air in just 10 minutes.

Compatible with TSI’s ventilation probes that measure air velocity / temperature / humidity, the Model 9500 is a complete solution for many certification needs. The combination of an optional electronic filter scanner with up to 8 m of tubing, make this the best instrument for in-place filter testing. Also an operating temperature range of 2 oC to 35 oC makes the unit ideal for use in pharmaceutical cold storage applications.

Product Features

  • Range of accessories
  • Document downloads
  • Instrument FAQs

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This particle counter can generate pass / fail reports for ISO 14644-1, EU GMP Annex 1, and FS209E. It can be used as a stand-alone particle counter or integrated into a facility monitoring system.

The Model 9500 complies with all the stringent requirements set forth in ISO 21501-4. It is calibrated with NIST traceable PSL spheres using TSI’s world-class Classifier and Condensation Particle Counters, the recognized standard for particle measurements.

Instrument is compatible for use with TrakPro Lite Secure software as an optional extra which enables data transfer in a 21 CFR Part 11 compliant manner.


Particle channel sizes

0.5, 0.7, 1.0, 3.0 5.0, 10.0 μm, with additional channel sizes available up to 25 μm on request

Size Resolution

< 15 % @ 0.5 μm (per ISO 21501-4)

Counting efficiency

50 % at 0.5 μm; 100 % for particles > 0.75 μm (per ISO 21501-4 and JIS)

Concentration limit

> 435,000 / ft3 at 10 % coincidence loss

Light source

Long life laser diode

Zero count

< 1 count per 5 minutes (per ISO 21501-4 and JIS B9921)

Flow rate

100 l/min ± 5 % accuracy (meets ISO 21501-4 and JIS B9921)

Battery life

> 2 hours of continuous operation

Temperature Range

2 oC to 35 oC


Built-in thermal printer (also available without printer)


Two years



TSI 9500 AeroTrak data sheet

  • Technical Document
  • PDF file
  • 178 KB

TSI 9510 9310 9350 9550 9500 quick start guide

  • Technical Document
  • PDF file
  • 673 KB

TSI 9510 9310 9350 9550 9500 user manual

  • Technical Document
  • PDF file
  • 2 MB

TSI AeroTrak accessories data sheet

  • Technical Document
  • PDF file
  • 564 KB

TSI TrakPro Lite data sheet

  • Technical Document
  • PDF file
  • 2 MB



Does my particle counter comply with ISO 14644-1:2015 ?


Yes, all current production instruments comply with the 2015 edition of ISO 14644.  These all have version 2.6 or later of the instrument firmware, and older units can be upgraded to this if they are retured to BSRIA or to the manufacturer.

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