Handheld particle counter

METONE MET ONE HHPC-6 HANDHELD PARTICLE COUNTER P/N: 2087615-01 - EXCELLENT

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

Lighthouse ActiveCount 25H Viable Air Sampler Particle Counter

Lighthouse Worldwide Solutions Handheld 3016 Particle Counter with Case

Lighthouse Handheld 3016 Particle Counter w/ Accessories and Case FOR PARTS ONLY

MINT CONDITION! P-Trak Ultrafine Particle Counter 8525 w/ Case, Software & More!

Beckman Coulter MET ONE HHPC 2+ 0.5μ Particle Counter