The Fisher FX-3 is a motion-sensitive, differential induction magnetometer engineered for locating ferrous metal objects such as survey markers, well casings, and buried iron pipes. Built for professionals in utility and damage prevention, it stands out with a unique target “nulling” tone feature for pinpoint accuracy.
Designed for real-world utility work, the FX-3 detects only ferromagnetic metals, ignoring aluminum, brass, or copper. Its motion-only response ensures minimal interference, while the audio tone increases in pitch and volume as targets are approached—then briefly nulls over the object for precise location feedback. A single control knob adjusts power and sensitivity, supported by solid-state VCO circuitry for reliable signal output and accurate depth detection even in high-interference zones.
Built to endure rugged field conditions, the FX-3 features a lightweight 2.5 lb frame, waterproof probe shaft up to 36", and a durable carrying case. Operates on a single 9V battery for up to 40 hours, with optional headphones for improved sound clarity in noisy environments. Simple, efficient, and field-proven—the FX-3 is a dependable tool for professionals who need reliable ferrous metal detection.
