https://geodevice.fr/en/product/marimag-lg/
MariMag LG - Longitudinal Marine Gradiometer for High-Sensitivity Magnetic Surveys | Geodevice
MariMag LG is an advanced longitudinal marine gradiometer designed for high-precision magnetic surveys. Featuring robust sensors and a portable design, it...
high sensitivitymagnetic surveyslglongitudinalmarine
https://geodevice.fr/en/product/marimag-htg/
MariMag HTG - Horizontal Marine Gradiometer for High-Sensitivity Magnetic Surveys | Geodevice
MariMag HTG is a horizontal marine gradiometer designed for high-sensitivity magnetic surveys. Featuring integrated sensors and a floating or sinking cable, it...
high sensitivitymagnetic surveyshtghorizontalmarine
https://pubs.usgs.gov/fs/fs-0163-95/FS163-95.html
USGS-Publications Fact Sheet 163-95 -- Magnetic Surveys for Locating Abandoned Wells
fact sheet