The PC2400PS Portable Particle Counter combines simplicity of operation, advanced electronics, and power performance to set the standard for particle counting. This highly portable unit has the capability to operate as both a grab sample particle counter and an online particle counter, which makes it ideal for particle size and concentration analysis in a variety of municipal and industrial applications. The PC2400PS can size particulates from 2 to 100 microns and count particulates from 2 to 900 microns. With the ability to detect particles at low part per trillion concentrations, the PC2400PS offers superior analytical performance at an economical price compared to most other laboratory type particle counters.