Description
Overview
The Fluke 985 Particle Counter is a portable airborne particle counter designed for HVAC, indoor air quality (IAQ), facility maintenance, and industrial cleanroom monitoring applications. It helps technical teams measure airborne particle concentrations, evaluate filter performance, investigate IAQ concerns, and collect particle-count data as part of preventive maintenance or troubleshooting programs. Fluke positions the 985 for applications such as filter efficiency measurement, industrial cleanroom monitoring, IAQ pre-screening, particle-source location, and repair-effectiveness reporting.
For engineers, maintenance teams, and IAQ professionals, the Fluke 985 provides a practical way to collect particle-count information on site without relying on a large benchtop system. Its six-channel measurement capability covers particle sizes from 0.3 μm to 10.0 μm, making it suitable for a wide range of air-quality and contamination-control tasks. The instrument is also designed for field use, with a color display, local data storage, configurable alarms, USB/Ethernet data transfer, and a rechargeable battery for portable operation.
Key Features
- Six particle-size channels: 0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm, and 10.0 μm.
- 0.1 cfm / 2.83 L/min flow rate for airborne particle sampling.
- Raw count, #/m³, #/ft³, and #/liter count modes in cumulative or differential mode.
- 10,000-record data storage for access to historical particle-count data.
- QVGA color display with backlight for easier viewing during field testing.
- USB or Ethernet communication, with export options via USB cable, USB memory stick, or Ethernet connection.
- Configurable alarm limits for selected particle channels.
- Rechargeable Li-ion battery with up to 10 hours of typical use, or 5 hours of continuous sampling.
- PSL particle calibration in air, NIST traceable.
- USB/Ethernet charging cradle and hard case included in the standard model package.
Applications
The Fluke 985 Particle Counter is suitable for professionals who need reliable airborne particle-count data in commercial, industrial, and controlled-environment settings. In HVAC maintenance, it can be used to measure filter efficiency and support performance checks after filter replacement or system repair. For IAQ investigations, the Fluke 985 can help pre-screen indoor air quality concerns and provide useful data before engaging or coordinating with IAQ specialists.
In industrial environments, the instrument can support cleanroom monitoring tasks and help identify particle sources that may affect process quality, product cleanliness, or environmental control. It is also useful for facility maintenance teams that need to document corrective work and report the effectiveness of repairs to customers, contractors, or internal stakeholders.
The Fluke 985 is not a gas detector, humidity meter, or particle-identity analyzer. Fluke states that it does not detect humidity, and it does not identify particle type or distinguish gases such as CO₂; it counts particles by size channel. This makes it best suited for particle concentration monitoring rather than chemical, gas, or humidity analysis.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Fluke |
| Model | Fluke 985 |
| Product Type | Airborne Particle Counter |
| Particle Size Channels | 0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm, 10.0 μm |
| Number of Channels | 6 |
| 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 minutes, per 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 Ethernet |
| Display | QVGA color display with backlight |
| Power Adapter | 100 V AC to 240 V AC, 12 V DC, 2.5 A |
| Rechargeable Battery | Li-ion 7.4 V, 2600 mAh |
| Battery Duration / Charge Time | 10 hours typical use; 5 hours continuous sampling; 3.5 hours charge time |
| 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 |
| Dimensions | 27.2 × 9.9 × 5.3 cm / 10.7 × 3.9 × 2.1 in |
| Weight | 0.68 kg / 1.5 lb |
| Warranty | One year |
Specifications are based on Fluke’s official Fluke 985 product page and technical information.
Package Contents
- Fluke 985 Particle Counter
- Cradle for charging and USB/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
Package contents are based on the official Fluke model listing.
Why Choose This Product
The Fluke 985 Particle Counter is a strong fit for organizations that need a portable and professional airborne particle-counting instrument for routine air-quality checks, HVAC service, cleanroom-related monitoring, and facility maintenance documentation. Its six-channel measurement range, configurable count modes, local data storage, and export options help technical users collect and review particle-count data without requiring special viewing software.
For procurement teams, the Fluke 985 offers the advantage of a recognized test-and-measurement brand, a clear technical specification set, and a standard accessory package that supports field deployment. The instrument’s USB/Ethernet cradle, included hard case, zero count inlet-filter, and rechargeable battery make it suitable for mobile service teams and maintenance departments that need repeatable air-particle checks across multiple sites.
For B2B buyers, the most important considerations are the intended application, required particle-size channels, calibration requirements, documentation needs, and availability of accessories or service support. Contact us for a quotation, datasheet support, lead time confirmation, calibration-related questions, and bulk purchasing assistance for the Fluke 985 Particle Counter.
Call to Action
Request a quote for the Fluke 985 Particle Counter today. Our team can support pricing, availability, datasheet requests, technical clarification, and B2B supply for HVAC, IAQ, facility maintenance, and cleanroom-related particle-counting applications.
