Fluke 985 Particle Counter
Fluke

Fluke 985 Particle Counter

Part number4131397
MOQ:1

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Product Description

Use the Fluke 985 air particle counter to test and analyze indoor air quality and determine airborne particle concentration.

Technical Specifications

Manufacturer part number (MPN)
4131397
Brand
Fluke
Category
Tools
Channels
0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm, 10.0 μm
Flow rate
0.1 cfm (2.83 L/min)
Light source
775 nm to 795 nm, 90 mW class 3B laser
Count modes
Raw counts, #/m3, #/ft3, #/liter in Cumulative or Differential mode
Counting efficiency
50% @ 0.3 μm; 100% for particles > 0.45 μm (per ISO 21501)
Zero count
1 count / 5 minute (JIS B9921)
Concentration limits
10% at 4,000,000 particles per ft3 (per ISO 21501)
Data storage
10,000 records (rotating buffer)
Alarms
Counts, low battery, sensor fail
Delay time
0 to 24 hours
Sample inlet
Isokinetic probe
Security
Administrator password control (optional)
Communication mode
USB 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)
Weight
0.68 kg (1.5 lb)
Power adapter
100 V AC to 240 V AC, 12 V DC, 2.5 A
Rechargeable battery
Li-ion 7.4 V 2600 mAh; 10 hours typical use (5 hours continuous sampling) / 3.5 hours
Calibration
PSL particles in air (NIST traceable)
Operating environment
50°F to 104°F (10°C to 40°C) / < 95% non-condensing relative humidity
Storage environment
14°F to 122°F (-10°C to 50°C)/Up to 98% non-condensing relative humidity
Warranty
One-year
Accessories included
Cradle for charging and convenient USB and Ethernet communications, 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

Cross References

  • OEM-URL https://www.fluke.com/en-us/product/building-infrastructure/indoor-air-quality-testing/fluke-985

Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 4131397?
4131397 can be ordered from cballast.com as a Fluke catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this Fluke product?
The manufacturer part number is 4131397.
Who manufactures 4131397?
4131397 is a Fluke product in the Safety & Detection range.
Is a datasheet available for 4131397?
Yes — the 4131397 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 4131397?
The minimum order quantity is 1.
Is 4131397 available?
Yes — 4131397 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
How do I get a price for 4131397?
Request a quotation with the quote button on this page or by email to sales@cballast.com — we reply within 24 hours with price, availability and lead time.