Boat Towed Metal Detectors

Metal Detector vs. Magnetometer

If you are searching primarily for nonferrous metal (gold, silver, lead, brass, bronze, aluminum, etc.), the best piece of equipment is a metal detector (Pulse 12).

If you are searching primarily for ferrous metal objects (iron and steel), the best piece of equipment is a magnetometer (Proton 5). The advantage of using a magnetometer is that it has a much greater detection area than a metal detector.