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All Indoor Air Products Products:

  • Portable Dust Monitor BT-645

    Met One Instruments’ BT‐645 Portable Dust Monitor has been designed to continuously measure and record particulate information for indoor work place and public space environments. Our BT-645 optical sensor, matched electronics and backlit display, are enclosed in a rugged metal...

  • Bench-Top Particle Counter BT-620

    Our BT-620 Bench-Top Particle Counter provides a full feature set in a lightweight convenient size. This Counter monitors 6 particle sizes, includes a built-in printer, is battery or AC operated in a stainless-steel case. The 620 flow rate is 1.0...

  • BT-610 Bench-Top Particle Counter - Met One Instruments

    Bench-Top Particle Counter BT-610

    The BT-610 is a compact battery-operated particle counter with six selectable size channels and built-in printer all housed in a portable stainless-steel case. Flow rate is 0.1 cfm (2.83 lpm) and is maintained with volumetric flow control for improved accuracy.

  • MCA front

    MCA 4000

    Introducing the latest technological innovation from Met One Instruments, Inc., the MCA 4000 Multi-Channel Analyzer. This instrument is a complete particulate counting and sizing measurement system that provides a 4,096 channel spectrum for airborne particulate between 0.3 and 10.0 microns....

  • GT-526S Handheld Particle Counter - Met One Instruments

    Handheld Particle Counter GT-526S

    Met One Instruments’ GT-526S is a full-featured, six-channel battery-operated, portable particle counter that provides the functionality of a bench unit with the convenience of a handheld. The six-channels can be configured to factory calibrated standard sizes or user defined custom...

  • Handheld Particle Counter GT-521S

    The GT-521S is a full-featured, battery-operated, portable particle counter that provides the functionality of a bench unit with the convenience of a handheld. This powerful device supports cumulative or differential counts, standard concentrations, total counts and count alarms. It can...

  • GT-324 Handheld Particle Counter

    Met One Instruments, Inc.’s Model GT-324 particle counter is a full-featured handheld particle counter that provides the functionality of a bench unit in a portable package. A fully integrated RH/Temp sensor immediately provides data to your displayed and logged data....

  • Model 804 Handheld Particle Counter - Met One Instruments

    Handheld Particle Counter Model 804

    Met One Instruments’ 804 handheld particle counter is a 4-channel portable particle counter that counts particles 0.3 microns to 10.0 microns – giving you portability and reliability at very competitive pricing. Though compact, this unit is completely self-contained with its...

  • Aerocet 531S Handheld Particle Counter

    Aerocet 531S Handheld Particle Counter

    The Aerocet 531S is a full–featured, completely portable, battery operated, handheld mass monitor or particle counter. This unit provides particle counts or mass PM measurements as stored data logged values, real-time networked data, or printed results.

  • Aerocet 831 Handheld Particle Counter - Met One Instruments

    Aerocet 831 Handheld Particle Counter

    The Aerocet 831 is a completely portable, full–featured, battery operated, handheld mass monitor. This device simultaneously provides five critical mass ranges (PM1, PM2.5, PM4, PM10 & TSP) in one minute from start up. Survey the environment with the easy to...

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