The Flowcell allows sample water to flow up through the AQUAPROBE?, passing over all the individual electrodes simultaneously. This eliminates air contact with pumped samples from groundwater boreholes,allowing truly representative measurements to be obtained. The superb sensitivity of the AQUAPROBE? means that measurements can be taken at extremely low flow rates. Manufactured from marine grade aluminum and 6mm (1/4″) wall thickness acrylic, the Flowcell is ruggedly constructed.