ART Instruments' Hand Held Particle Counter (HHPC-6) It is an easy to operate, data logging instrument that counts 6 sizes of airborne particles simultaneously (from 0.3microns to 5 microns).
This is the smallest, fastest direct reading monitor for Dust, Aerosols, Fumes and Mists. This is a real-time monitoring instrument capable of sensing and measuring aerosol concentrations over the range of 0.01 to 100 mg/m3. Runs 12 hours per charge.
The Portacount Plus is based on a miniature, continuous flow
Condensation Nucleus Counter (CNC). This type of device takes particles
that are too small to be easily detected and grows them, using
condensation of alcohol vapour, to a size where they are large enough
to be detected.