Oceanographic instrumentation design & manufacture for civil & military markets.  

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ALPHA^tracka II: Compact, highly accurate, submersible transmissometer for suspended and dissolved solids. Blue, green, yellow or red light versions available. 

GLOW^tracka: Submersible bioluminescence sensor which monitors the visible emissions from bioluminescent organisms in seawater.

MINI^pack CTD-F Sensor Suite: Compact, SmartMedia^TM based multi-parameter monitoring system for oceanography and liminology.

PAR Irradiance Sensor: For the measurement of Photosynthetically Active Radiation.

Autonomous Plankton Sampler: A modern Plankton Sampler updating the Hardy design for automated towed and ship-borne use.

Deck Units: CTG manufacturers a range of deck units.