Basics

Counts and determines the particle count of the sample's atmosphere
This is a function of air volume and the total particles detected in that volume
May also determine particle size/composition
Is used by the Open Source Air Quality Monitoring System ( and the Open Source Cleanroom Construction Set in general ) for controlling air purity levels
It is a probe so it can also be used with the Open Source Labratory Data Logger Construction Set for use independant of a larger system

Open Source Particle Counter