The LISST-200X is a submersible laser-diffraction based particle size analyzer designed to measure particle size and concentration in rivers, streams, ports, harbors, coasts and oceans, whether for biological, sediment transport, or environmental monitoring needs.

Applications include sediment transport studies, harmful algae blooms, oil spill dispersion effectiveness, dredge plume monitoring, etc. For marine optics applications the LISST-200X provides the small-angle Volume Scattering Function.

20 years of LISST-100X experience combined with feedback from users has led us to create this Smaller, Deeper, and Smarter Particle Size Analyzer.

The LISST-200X is significantly smaller than the LISST-100X but it has also been made stronger and is now able to make measurements at twice the depth: up to 600 meters. Improved optics cover the size range 1-500 microns in 36 size classes. The optics are also more robust and have improved rejection of ambient light. A superior depth sensor and a faster temperature sensor improve profiling data. The 25mm optical path allows a wider working range of particle concentrations. Auxiliary information, such as calibrations and background files, are stored in the saved data file. All information needed to process the data are included in this single file, therefore alleviating the need for tracking multiple files.

The LISST-200X also outputs the Mean Size and Total Concentration as analog voltages while simultaneously storing the full size distribution internally for later downloading. This allows real-time monitoring of summary data during profiles via existing CTD interfaces.

A full range of accessories are available for the LISST-200X including small and large External Battery Packs, Path Reduction Module, Full Path Flow Through Chamber, Large Volume Test Chamber, Mixing Chamber (coming soon), BioBlock Anti-Fouling Shutter (coming soon), Settling Column (coming soon) and towed and AUV configurations.

This next generation particle sizer is simply smaller, deeper and smarter, whether for lab or field use.