P-TRAK 8525 by TSI - Ultrafine Particle Counter

Area Monitoring Datalogging
Particle Counter Manufacturer: TSI Alnor
P-TRAK 8525 by TSI - Ultrafine Particle Counter
Training
Available
P-TRAK 8525 by TSI - Ultrafine Particle Counter
P-TRAK 8525 by TSI - Ultrafine Particle Counter
Training
AeroTrak 9306-V2 vs P-Trak 8525 Comparison Guide

The P-TRAK 8525 is a handheld ultrafine particle counter that detects particles in the 0.02–1 µm size range using an isopropyl alcohol condensation particle counting (CPC) method, capturing the ultrafine fraction that standard laser-based counters cannot detect. It supports up to 1,000 hours of datalogging at 1-minute intervals with 470 individual storage points. Well-suited for indoor air quality investigations, ultrafine particle source identification, HVAC filter efficiency testing, and occupational exposure studies in environments with nanoparticle or combustion-generated particle concerns.

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$170.00
Weekly
$465.00
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What is the TSI P-TRAK 8525 used for?
It's an ultrafine particle counter (0.02–1 µm) for measuring particle number concentration in IAQ investigations, HVAC filtration performance checks, combustion source characterization, and cleanroom diagnostics. It detects particles far too small for standard optical particle counters.
P-TRAK 8525 vs. a standard optical particle counter — when do I need each?
Use the P-TRAK when the particle size range of concern is ultrafine (below 0.1 µm) — combustion particles, welding fume, nanoparticles. Use an optical particle counter when you need size-resolved counts in the 0.3–10 µm range for cleanroom classification or general IAQ particle monitoring.
Does the P-TRAK 8525 identify what the particles are?
No — it reports number concentration (particles/cm³), not composition or source. For source identification, you need additional sampling or lab analysis methods alongside the P-TRAK data.
What's the P-TRAK 8525 useful for in an IAQ investigation?
Comparing particle counts between areas, identifying temporal spikes tied to activities (cooking, printing, HVAC changes), and evaluating whether filtration or ventilation changes reduce ultrafine particle concentrations.
What's included in the P-TRAK 8525 rental kit?
The P-TRAK 8525 monitor, isopropyl alcohol cartridge (the condensation agent), zero filter, USB cable, and TrakPro software.
What does it cost to rent the TSI P-TRAK 8525?
$170/day and $465/week. Pricing beyond two weeks is by quote. For IAQ investigations requiring pre/post comparison data or multi-area surveys, the weekly rate is typically more economical — thorough ultrafine particle assessments rarely complete in a single day.

Exposure Hazards This Equipment Detects

Particulate Matter (PM₂.₅ / PM₁₀)

CAS: N/A
Learn More
Updated on March 09, 2026
PEL TWA
N/A
REL TWA
N/A
TLV TWA
N/A

Features & Capabilities

Calibration Certificate Available: ✓ Yes
Datalogging: ✓ Yes
Monitoring Scope: Area Monitoring

Equipment Specifications

Detection Method: Condensation Particle Counting (CPC); requires 100% reagent-grade isopropyl alcohol as working fluid (~8 hrs per wick charge)
Target Parameter / Analyte: Ultrafine particle count (0.02–1 µm, unspeciated)
Particle Size Range: 0.02–1 µm
Measurement Range: 0 to 5 × 10⁵ particles/cm³
Resolution: Not available on this model
Accuracy: Not available on this model
Sample Flow Rate: 100 cm³/min (sample); 700 cm³/min (total, nominal)
Channels/Size Bins: Not available on this model
Sampling Modes: Not available on this model
Data Logging Interval: 1-minute intervals
Data Storage Capacity: Up to 1,000 hours of logging (470-point storage capacity)
Battery Run Time: 6 hours at 70°F (6 AA alkaline batteries)

Kit Contents

Telescoping sample probe, sample tube, shoulder strap, inlet screen, two spare wicks, battery holder, six AA Alkaline batteries, alcohol fill capsule with storage cap, alcohol cartridge, four 30-ml bottles reagent-grade isopropyl alcohol, two zero filters, carrying case, TrakPro software, computer DB9/DB25 serial adapter, and operations manual.

Manufacturer Resources

Documents

User manuals, safety guides, and technical documentation from the manufacturer:

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