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People Spend on Average Approximately 90% of Their Time Indoors

What is in the Air You are Breathing?

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A particle counter or dust monitor can offer a portable solution for determining airborne particle concentrations and is an essential tool in facility maintenance, HVAC, and any IAQ professional’s toolbox. From filter testing to indoor air quality investigations, the particle counter equips the user with valuable data concerning the concentration and source of particulates in the tested environment. Such equipment can provide an immediate response to occupant complaints or be used as part of a comprehensive preventative maintenance program.

The demand for accurate and reliable indoor air quality instrumentation continues to grow as we spend more time indoors than ever before. However, indoor air quality issues can be complex due to the diversity of indoor environments. Assessment of the air quality in your indoor environment should begin with quality, professional-grade monitors. Met One has a diverse offering of instruments to do the job, such as the Aerocet-831, the 804, and the GT-324. Particle counts and mass concentration readings are critical to determining the overall air quality in indoor settings. We offer a handheld device capable of calculating both in our ALL-NEW Aerocet 532.

đź’ˇ WANT TO LEARN MORE?

đź”— Read our article, IAQ 101: INDOOR AIR QUALITY to learn EVERYTHING YOU NEED TO KNOW ABOUT INDOOR AIR QUALITY
🔗 Read our article, Industrial Hygiene 101 to better understand the importance of Environmental Health & Safety as it relates to indoor air quality. 
đź”— Learn more about how Met One Instruments, Inc. helps ensure air quality in HVAC applications.

Indoor Air Quality Monitoring Products:

  • ES-405

    ES-405 Simultaneous Particulate Profiler

    The ES-405 is a near reference air quality sensor designed to provide accurate real-time measurements of TSP*, PM10, PM4, PM2.5, and PM1 particulate concentrations simultaneously. It reports these five key particulate concentrations in both indoor and outdoor environments. The rugged...

  • Aerocet 380 Portable Dust Monitor

    The Aerocet 380 is a Nephelometer developed by Met One Instruments Powered by Acoem that offers real-time airborne TSP (total suspended particulate) concentration levels using the principle of forward-laser light scatter. This instrument is ideal for sampling in any indoor...

  • Aerocet 532 Handheld Particle Monitor

    Meet the Aerocet 532 Handheld Particle Monitor from Met One Instruments Powered by Acoem. The Aerocet 532 particle monitor has been optimized in functionality and ease of use with a 2.8″ TFT full-color LCD display, making accurate measurement readings and...

  • Aerocet 831 Handheld Aerosol Mass Monitor

    The Aerocet 831 from Met One Instruments Powered by Acoem is a completely portable, full–featured, battery operated, handheld mass monitor for indoor air quality monitoring. This device simultaneously provides five critical air particulate mass ranges (PM1, PM2.5, PM4, PM10, &...

  • GT-324 Handheld Particle Counter

    The Model GT-324 Handheld Particle Counter from Met One Instruments Powered by Acoem 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...

  • 804 Model Handheld Particle Counter

    The Model 804 Handheld Particle Counter from Met One Instruments Powered by Acoem 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...

  • The Dock, Handheld Particle Counter Docking Station

    The Dock docking station from Met One Instruments Powered by Acoem is a power and communications accessory for select handheld indoor air quality monitoring devices. Compatible with the new generation of MOI handheld particle counters, including the Aerocet 532 and...

  • GAS-1010 Ozone Analyzer

      The GAS-1010 ozone (O3) analyzer by Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven non-dispersive ultraviolet (UV) absorption technology to measure O3 in ambient air (LDL < 0.5 ppb,...

  • GAS-1030 Carbon Monoxide Analyzer

      The GAS-1030 carbon monoxide (CO) analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven NDIR gas filter correlation technology to measure CO in ambient air (LDL < 40 ppb,...

  • GAS-1031 Carbon Dioxide Analyzer

      The GAS-1031 carbon dioxide (CO2) analyzer by Met One Instruments Powered by Acoem uses non-dispersive infrared (IR) gas correlation spectroscopy to provide accurate, stable, and repeatable measurements of gaseous CO2. It can be configured to operate in absolute or...

  • GAS-1040 Nitrogen Oxides Analyzer

      The GAS-1040 Oxides of Nitrogen (NOx) analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven chemiluminescence technology to measure NO, NO2 and NOx in ambient air (LDL <...

  • GAS-1044 Ammonia and Oxides of Nitrogen Analyzer

      The GAS-1044 Ammonia Analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven chemiluminescence technology and an external thermal catalytic converter to measure NO, NO2, NOX and NH3 in...

  • GAS-1050 Sulfur Dioxide Analyzer

      The GAS-1050 Sulfur Dioxide (SO2) Analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven pulsed UV fluorescent radiation technology to measure SO2 in ambient air (LDL < 0.3...

  • GAS-1051 Sulfur Dioxide & Hydrogen Sulfide Analyzer

      The GAS-1051 Sulfur Dioxide and Hydrogen Sulfide Analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It combines pulsed fluorescence detection with an internal catalytic converter to sequentially measure H2S and...

  • GAS-1055 Hydrogen Sulfide Analyzer

      The GAS-1055 Hydrogen Sulfide (H2S) Analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven UV fluorescent radiation technology and an internal thermal catalytic converter to measure H2S in...

  • GAS-1057 Total Reduced Sulfur Analyzer

      The GAS-1057 Total Reduced Sulfur (TRS) analyzer from Met One Instruments Powered by Acoem delivers precise and reliable performance at an excellent value. It uses proven UV fluorescent radiation technology and a thermal converter to measure TRS in ambient...

  • GAS-1060 Nitrogen Dioxide Analyzer

      The GAS-1060 Nitrogen Dioxide (NO2) Analyzer with Cavity Attenuated Phase Shift (CAPS) spectroscopy technology from Met One Instruments Powered by Acoem allows direct measurement of NO2, rather than an indirect calculation from a chemiluminescence analyzer. Using a modulated blue...

  • CAL-100 Gas Dilution Calibrator

      The CAL-100 Gas Dilution Calibrator from Met One Instruments Powered by Acoem performs necessary gas dilution calibrations and is used in conjunction with regulatory traceable gases and a zero air generator. The most cost effective calibration solution on the...

  • CAL-200 Gas Dilution Calibrator with Internal Ozone Generator

      Introducing the CAL-200 Gas Dilution Calibrator with Internal Ozone Generator from Met One Instruments Powered by Acoem. We know how important measuring ground-level ozone accurately can be. With all the base features of the CAL-100 calibrator, the CAL-200 includes...

  • CAL-300 Advanced Gas Dilution Calibrator

    with Internal Ozone Generator & Ozone Photometer (Ozone Transfer Standard) The CAL-300 Calibrator from Met One Instruments Powered by Acoem includes all the features of the CAL-200, with the addition of an ozone photometer for the accurate creation and delivery...

  • CAL-301 Top-of-the-Line Gas Dilution Calibrator

      The CAL-301 Gas Dilution Calibrator from Met One Instruments Powered by Acoem includes a built-in ozone generator and internal zero-air source as well as a compact reference photometer, providing precise feedback control for accurate ozone generation and measuring in...

  • LVS-100 Low-Volume Air Sampler

    Introducing the LVS-100 from Met One Instruments Powered by Acoem. The LVS-100 is a flexible micro-sampling platform for PM2.5, PM10, and TSP, and offers basic meteorological parameters. The LVS-100 Low Volume Air Sampler provides a flexible sampling platform for PM10, PM2.5,...

  • Particle View RT Software

    Particle View RT software includes all of the functions required for recording real time data, viewing data (both real time and historical), and producing tabular and graphic reports needed for most users of clean rooms and controlled environments. It is...

  • Particle View Software

    Particle View software includes all of the functions required for the downloading, viewing of data, and production of both tabular and graphic reports. It is designed for use with the Met One Instruments, Inc. line of hand held and bench top...

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