HYDRO PRODUCTS

OCEANOGRAPHIC MEASURING EQUIPMENT-NAMELY, SCIENTIFIC APPARATUS, INSTRUMENTS OR DEVICES USED IN MEASURING, INDICATING OR RECORDING OCEANOGRAPHIC PHENOMENA-NAMELY, SALINOMETERS, PHOTOGRAPHIC CAMERAS, SEA BED CORERS, IRRADIANCE METERS, TRANSMISSOMETERS, FLUID CURRENT METERS, TEMPERATURE PROBES, TURBIDITY METERS, FLOATS AND BUOYS, EXPLOSIVE RELEASES, TELEVISION CAMERAS AND MONITORS, ANEMOMETERS, GRAPHIC RECORDERS, PAN AND TILT DRIVES, DYE RELEASE UNITS, WATER SAMPLERS, VANE SHEAR METERS, SAMPLING BOXES, ELECTRIC ALARM SYSTEMS FOR BOATS, OCEANOGRAPHIC ELECTRIC CABLE, BATTERIES, D.C.-A.C. POWER INVERTERS, HYDROPHONES