The NanoFlowSizer is a new innovative system for continuous, real-time nanoparticle size characterization of colloidal systems, nanosuspensions, nanoemulsions and other dispersed nanoproducts directly in manufacturing processes (inline) or in a laboratory setting (offline). As inline instrument, the NanoFlowSizer is a powerful non-invasive Process Analytical Tool allowing close monitoring of particle size characteristics in your process in either development laboratories, pilot plants or commercial operations, without the need of sampling. The nanoFlowSizer can be integrated easily in your process by using flow-through cells allowing high speed measurements of even highly turbid nanomaterial using new Spatially Resolved Dynamic Light Scattering (SR-DLS) technology and smart XsperGo software. The NanoFlowSizer provides unique opportunities for studying particle size dynamics supporting your product and process development. The NanoFlowSizer can also be operated in offline mode for manual measurements under static and flow conditions using cuvettes or other glassware.