Met One HHPC 2+ Handheld Airborne Particle Counter 2-Channels USB with Charger

Beckman Coulter MET ONE HHPC 2+ 0.5μ Particle Counter

Met One HHPC-2 Handheld Particle Counter

MET ONE INSTRUMENTS HHPC-2 Particle Counter

Hach 3415 MET ONE 3400 Portable Particle Counter

Met One HHPC-6 Airborne Particle Counter

Hach 3415 MET ONE 3400 Portable Particle Counter 2088900-02-W

Art Instruments Arti HHPC-6 Handheld Airborne Particle Counter w/ Accessories