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Institutt for geovitenskap

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The EdgeTech 3100 a portable (45 kg) Sub-bottom Profiler used to visualize features down to c. 40m (clay) sub-bottom in up to 300m water depth. The SB-424 towfish operates at 4-24 kHz and can be used from smaller boats.

https://www.edgetech.com/products/sub-bottom-profiling/3100-portable-sub-bottom-profiler/