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

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

Met One HHPC-6 Airborne Particle Counter

Beckman Coulter MET ONE HHPC 2+ 0.5μ Particle Counter

Handilaz Mini Handheld Particle Counter

MET ONE LASER PARTICLE COUNTER Model 237B HACH + ISOKINETIC PROBE+ CHARGER

Met One Particle Counter Hhpc6 Airborne Particle Counter No Adapter

VAI HANDHELD SMA MP HH NON VIABLE PARTICLE COUNTER AND PRINTER