Air Particle Counters

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New MET ONE 3400+


The new MET ONE 3400+ Series Portable Airborne Particle Counter features automated integrated electronic SOPs and sampling maps that reduce training requirements—and sampling errors.

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MET ONE 3400


Designed specifically for ISO14644 cleanroom applications, with a classification wizard to ensure compliance during periodic cleanroom certification

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MET ONE 3411


MET ONE 3411 remote air particle counter for use with semiconductor, hard disk drive & flat panel display cleanrooms. In compliance with ISO 14644, FDA CGMP and EU GMP Annex 1.

  • Particle size 0.5um
  • Flow rate 1.0 cfm
  • Built-in flow sensor
  • ISO 21501 accuracy
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MET ONE HHPC+ Series


Handheld particle counters designed for cleanroom monitoring in regulated and semi-regulated production environments including food and beverage filling lines, hospital labs and precision parts manufacturing. Ethernet, USB, or cable for data transfer options.

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Facility Monitoring System

Scalable on-line particle monitoring solutions based on open architecture communications that integrate easily with your preferred systems.

  • Suite of air particle counters
  • Integration software
  • Full ISO 21501 compliance
  • 21 CFR Part 11 compliance
  • On-site service option
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MET ONE 6000


Compact remote air particle counter for cleanrooms to provide accurate data in particle monitoring systems. In compliance with ISO 14644, FDA CGMP and EU GMP Annex 1.

  • Particle size 0.3um or 0.5um
  • Flow rate 0.1cfm or 1.0 cfm
  • Built-in flow sensor
  • ISO 21501 accuracy
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