About Rockland Oceanographic Services Inc. Rockland Oceanographic Services Inc. offers technical services and equipment for environmental water research and monitoring. We understand and respond to the unique challenges associated with the in-situ measurement of water properties. Together with our partners we are here to assist you in getting your data. Featured Products RINKO Fast Dissolved Oxygen Sensor (DO) Features <1-second response Fast response in cold water 0.01% resolution  ± 2% accuracy 7000m rated Consulting Technical and scientific consulting JFE ALEC Co. Ltd. Conductivity, temperature, depth (CTD) and water quality sensors and instruments. Rockland Scientific International Coastal and deep-sea microstructure turbulence profilers and equipment. A proud supporter of the Victoria Jazz Society.