The D-Opto range of instruments monitor dissolved oxygen levels in streams, rivers, lakes and marine environments with minimal on-site maintenance and servicing. Unlike conventional polarographic dissolved oxygen sensors, the D-Opto sensing element utilises fluorescence to measure dissolved oxygen. It doesn’t consume oxygen, so the measurement of dissolved oxygen by D-Opto instruments is unaffected by water flow.
The New Zealand company, Zebra-Tech, specialises in the design, development and manufacture of instrumentation and equipment for underwater monitoring and research. They are experts in the added challenges that water, mud, silt, algae, floating debris, barnacles and water pressure bring to the design and manufacture process. Their instruments are reliable and precise even during long-term use in the harshest of conditions.
Seapoint Sensors is a global leader in underwater optical sensors. Their sensors, known for their high performance, low power consumption and 6 000 m depth rating, are used for on-site measurements in fresh and salt water under extreme conditions. Seapoint Sensors’ instruments are easily interfaced with a variety of third party products like submersible data loggers and CTD (conductivity, temperature, depth) systems.
Fluid Imaging Technologies manufactures particle analysis instrumentation based on digital imaging technology. Their flagship product, the FlowCAM, is the first automated instrument to use digital imaging for measuring size and shape of microscopic particles in fluids. Fluid Imaging Technologies has applications in oceanographic research, municipal water, chemicals, oil and gas and continues to lead the way in imaging particle analysis.
The key objective of Hydroptic is to facilitate the identification, size distribution and enumeration of zooplankton species and sediments in the waters of the world. By providing a repeatable system for the comparison of the characteristics of zooplankton populations, they believe they can help advance on-going scientific investigations into the effects of climate change and global warming.
RBR develops and markets submersible data loggers, recorders, controllers and sensors for water quality measurement. They offer accurate temperature, depth and conductivity sensors as well as a multitude of specialised sensors for oceanographic, freshwater, cryospheric, estuarine and coastal monitoring. Their sensors measure conductivity, pressure, temperature, pH, oxidation reduction potential, fluorescence, turbidity and dissolved oxygen.
Hydro-Bios is the oldest company in Germany that manufactures instrumentation for oceanographic and hydrological investigations. They deliver to customers in more than 90 countries worldwide. They are well-known as manufacturing specialists for water sampling equipment, either using water samplers as a single instrument or in a rosette configuration. Hydro-Bios also deploys plankton nets to gather biological specimens.
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