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Pocket-size pressure logger (DEFI2-DHG & DEFI2-D)

DEFI2-DHG and DEFI2-D are miniature pressure recorders (depth meters) for long-term observations (DEFI-D and DEFI-DHG are up to 573 days and 52 days respectively and for 1 minute interval observation). These two recorders can be used attached to fishing nets, underwater instruments and moorings. Also, AAA alkaline batteries used by DEFI-DHG and DEFI-D are easily available, reducing the operating costs.

*In order to measure sea level fluctuations, we recommend the installation of one unit for atmospheric pressure monitoring (atmospheric pressure compensation).

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