The Mark 8 Sediment Trap is a time-series instrument that autonomously collects the flux of settling particles on an operator-defined schedule. The wide top funnel accumulates particulate specimens into individual sample bottles. The cone interior is natural polyethylene. Deploys from a stand-alone mooring or a large high-tension vertical array.
McLane Mark 8 Data Sheet (PDF)
McLane website: http://www.mclanelabs.com/master_page/product-type/samplers/sediment-traps