Ocean Optics has introduced a line of accessories for dynamic sampling (averaging signal across the sample). The accessories are a diffuse reflectance (DR) probe, rotating sample cup, multiplexer and flow cell. The DR Probe integrates a light source and collection optics to measure 45° diffuse reflectance. The DynaCup is a rotating device that presents samples to the DR Probe. To save sample measurement times and streamline sample processing, the multiplexer is a mechanical actuator that distributes light through 10 customisable channels from a single light source. The DynaFlux is an integrated transmission and absorbance flow cell, which accepts standard transmission cells with pathlengths up to 10 mm and a temperature-controlled sampling chamber.