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Technology Factsheet

FX-3 Ferro-Magnetic

Category: Characterization > Utilities Identification > Magnetic
Reference # : Model No : FX-3

The Fisher FX-3 Ferro Probe senses fluctuations in the earth’s magnetic field caused by buried survey markers, pipes, well casings, valves, iron relics, septic tanks and other ferromagnetic (iron or steel) objects. Because it’s a differential-induction magnetometer, the FX-3 locates buried iron objects far beyond the reach of ordinary (search-coil-type) metal detectors.The FX-3 weighs 2 1/2 lbs. (1.14 kg) and features motion detection (the tube probe must be moving to detect a target).When the FX-3’s two sensors come across a large ferrous object, the FX-3 signal tone increases in pitch and volume. When the FX-3 probe is directly over the target, the signal becomes silent and picks up again when moved past the target. The FX-3 is extremely sensitive to iron with a large surface area, highly magnetized objects and long objects buried vertically. In addition to its industrial uses, the FX-3 can be used by archeologists and treasure hunters to find iron relics and other buried ferrous artifacts.

Benefits

• The FX-3 detects ferromagnetic (iron and steel) objects (or magnet) • The FX-3 features simple, one-knob operation • Automatic battery check • Built-in speaker or headphone output • Waterproof probe up to control box • Rugged, lightweight, balanced design • Powered by single 9 volt battery

Limitations

NA

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