Profile: Chelsea Technologies Group Ltd. specializes in the design and manufacture of a range of sensors & systems. Our products are used in the military, civil oceanographic, environmental, acoustics, medical diagnostic, and process control markets. Our small digital fluorimeters are used to monitor in real-time concentrations of refined poly-aromatic hydrocarbons, crude hydrocarbon, CDOM and tryptophan. We manufacture a range of underwater acoustic hydrophones for receiving over a wide frequency range. Our Aqualine Ferrybox is a generic, robust and secure environmental monitoring system for ships of opportunity such as ferries, cargo vessels, vocational cruise liners, as well as inland waterway vessels. It provides information, on real time on the environmental state of the surface waters through which the vessel passes.