Multi-Angle Dynamic Light Scattering (MADLS) is a technique that is used to determine properties of particles in suspension. The measurements give the hydrodynamic size distribution of individual particles as well as particle clusters, and assists in the interpretation of the stability of the particles (read on zeta-potential). The multi-angle detection gives a measurement sequential collected from three different angles. This allows to deal relative polydisperse samples as often found when realistic field samples are used. The multi-angle measurement offers furthermore improvements in particle sizing resolution, sensitivity and accuracy compared to traditional single angle Dynamic Light Scattering (DLS).