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  • FLUKE 985 6 Channel Indoor Air Quality Particle Counter; 0.1 cfm Flow Rate

    # 985

    • Preferred choice for HVAC and IAQ professionals.
    • Portable solution for determining airborne particle concentrations.
    • Pre-screen indoor air quality and confidently work with IAQ specialists

    The Fluke 985 Particle Counter is the preferred choice for HVAC and IAQ professionals. From filter testing to IAQ investigations, the Fluke 985 is the portable solution for determining airborne particle concentrations. Use the Fluke 985 to immediately respond to occupant complaints, or as part of a comprehensive preventive maintenance program.


    Assess air quality more easily and accurately.

    • Six channels and particle size range of 0.3 – 10.0 µm: Assures accurate measurements even for critical locations requiring ISO Class 5 – 9 certification
    • Ultra-lightweight and ergonomic design: Promises easy single-hand operation in tight or awkward spaces with less operator fatigue
    • Long battery life: Ten hours of standard-use battery life to last a full work day
    • Large 3.5 QVGC Color display: Easy navigation and viewing with the intuitive icons and large font options
    • 10,000 record storage: Quick access to historical data
    • On-screen data presentation: Data can be viewed in a traditional tabular or trend graph view at the user’s preference
    • Personalized setting and configurations: Customizable settings for the display, sample methods, and alarm settings for sample count
    • Data export options: Download data to a PC using a USB memory stick, USB cable or Ethernet connection. No special software is required to download or view data
    • Option password control: Confirms security when required
    • USB/Ethernet charge cradle: Assures device is always ready to go when needed


    With the Fluke 985 you can:

    • Measure filter efficiency
    • Monitor industrial cleanrooms
    • Pre-screen indoor air quality and confidently work with IAQ specialists
    • Locate particle sources for remediation
    • Report the effectiveness of repairs to customers
    • Drive additional business by demonstrating the need for maintenance and repair


    Measured Specifications
    Channels0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm, 10.0 μm
    Flow rate0.1 cfm (2.83 L/min)
    Light source775 nm to 795 nm, 90 mW class 3B laser
    Count modesRaw counts, #/m3, #/ft3, #/liter in Cumulative or Differential mode
    Counting efficiency50% @ 0.3 μm; 100% for particles > 0.45 μm (per ISO 21501)
    Zero count1 count / 5 minute (JIS B9921)
    Concentration limits10% at 4,000,000 particles per ft3 (per ISO 21501)
    Data storage10,000 records (rotating buffer)
    AlarmsCounts, low battery, sensor fail
    Delay time0 to 24 hours
    Sample inletIsokinetic probe
    SecurityAdministrator password control (optional)
    Communication modeUSB or Etheret
    Dimensions (L x W x D)27.2 x 9.9 x 5.3 cm (10.7 x 3.9 x 2.1 in)
    Weight0.68 kg (1.5 lb)
    Power adapter100 V AC to 240 V AC, 12 V DC, 2.5 A
    Rechargeable batteryLi-ion 7.4 V 2600 mAh; 10 hours typical use (5 hours continuous sampling) / 3.5 hours
    CalibrationPSL particles in air (NIST traceable)
    Operating environment50°F to 104°F (10°C to 40°C) / < 95% non-condensing relative humidity
    Storage environment14°F to 122°F (-10°C to 50°C)/Up to 98% non-condensing relative humidity
    Manufacturer WarrantyOne-year
    Accessories includedCradle for charging and convenient USB and Ethernet communications, ENET CAT5E 7 foot cable, USB-A to MINI-B 6 foot cable, 12 V dc power supply, zero count inlet- filter, filter adapter, sample inlet protective cap, hard case, getting started manual and users manual CD
    • Getting started manual and users manual CD
    • Cradle for charging and convenient USB and Ethernet Communications
    • ENET CAT5E 7-foot cable
    • USA-A to MINI-B 6-foot cable
    • 12 V DC power supply
    • Zero count inlet-filter
    • Filter adapter
    • Sample inlet protective cap
    • Hard Case

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