The FGM3D UW is a 3-axis fluxgate magnetometer specifically designed for offshore and underwater applications, including ROV (Remotely Operated Vehicle) surveys, underwater infrastructure inspections, detection of underwater objects such as UXO (Unexploded Ordnance), and seafloor magnetic mapping. It is a core component of the MAGNETO® MX3D UW system, which is used for high-quality magnetic data acquisition in marine environments.