TSI
TSI P-Trak 8525 Ultrafine Particle Counter
The TSI P-Trak 8525 Ultrafine Particle Counter detects particles from 0.02 to 1 µm and provides real-time measurements of ultrafine particle concentrations up to 5 × 10⁵ particles/cm³. It operates with a sample flow rate of 100 cm³/min and uses 100% isopropyl alcohol as a working fluid. The unit logs up to 1,000 hours of data and operates on 6 AA batteries for up to 6 hours. It is used for identifying indoor air quality issues and monitoring pollutant sources in workplace environments.