The Fisher FX-3 Ferro Probe is a precision ferromagnetic locator engineered for professionals who need fast, reliable detection of buried iron and steel objects. Built in the USA and designed with advanced solid-state technology, the FX-3 is trusted in utility, survey, and field service industries for pinpointing survey markers, pipes, valves, well casings, septic tanks, and more. Unlike standard metal detectors, the FX-3 detects only ferrous metals, giving you a highly accurate and efficient locating tool with exceptional depth performance.
This unit features simple one-knob operation, motion-based detection, and a unique target-nulling audio response that makes pinpointing fast and precise. Lightweight, durable, and backed by a 2-year manufacturer warranty, the FX-3 is built to perform in demanding environments.
Professional magnetic locator for iron & steel objects only
Motion detection & audible null signal for precise pinpointing
Advanced solid-state engineering for reliability
One-knob control (Power & Sensitivity) – easy to operate
Rugged waterproof sensor shaft for field durability
Lightweight design – only ~2.5 lbs
Hard carrying case included
Optional headphone jack (¼")
Surveying & construction
Utility locating crews
Excavation & dig safety
Septic & well location
Property marker recovery
Relic hunters seeking deep iron targets
Fisher FX-3 Magnetic Locator
Hard Carry Case
Uses (1) 9-volt battery
Up to 40 hours of runtime depending on battery type
| Specification | Detail |
|---|---|
| Operation | Differential Induction Magnetometer |
| Detection | Ferrous-metal only (iron/steel) |
| Length | Approx. 42.25 in. |
| Waterproof Probe Length | Approx. 36 in. |
| Weight | Approx. 2.5 lbs |
| Battery | 1 × 9V (alkaline recommended) |
2-Year Manufacturer Warranty
Fisher Research Labs has been producing professional-grade locating equipment since 1931 and is a trusted name in utility and surveying industries for reliable, deep-seeking instruments.
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