Handheld Particle Counters

8303 Handheld Particle Counter
0.3 µm @ 0.1 CFM

The Particles Plus 8303 Handheld Particle Counter measures 0.3 µm to 25 µm with a flow rate of 0.1 CFM (2.83 LPM) and can display up to 3 particle size channels as well as (optional) temperature and humidity data.

8306 Handheld Particle Counter 
0.3 µm @ 0.1 CFM

The Particles Plus 8306 Handheld Particle Counter measures 0.3 µm to 25 µm with a flow rate of 0.1 CFM (2.83 LPM) and can display up to 6 user-selectable particle size channels as well as temperature and humidity data.

8506 Handheld Particle Counter
0.5 µm @ 0.1 CFM

The Particles Plus 8506 Handheld Particle Counter measures 0.5 µm to 25 µm with a flow rate of 0.1 CFM (2.83 LPM) and can display up to 6 user-selectable particle size channels as well as temperature and humidity data.