Fisher Gemini 3

The Fisher Gemini 3 is built to locate large, deep targets that ordinary detectors can’t reach. Engineered for exceptional depth detection—up to 10 to 15 feet depending on soil conditions and target size—it’s trusted by treasure hunters, relic seekers, and prospectors worldwide. Whether you’re chasing caches, ore veins, or deeply buried relics, the Gemini 3 delivers the power and precision you need.

Featuring VCO audio response for accurate pinpointing, and selectable inductive search or conductive trace modes, this deep-seeking system offers unmatched versatility in the field. Rugged, reliable, and easy to operate, the Fisher Gemini 3 helps you uncover what lies far below the surface.
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Customer Questions & Expert Answers about the Fisher Gemini 3

Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup —or ask your own to make sure this gear fits your next adventure.

Fisher Gemini 3 - Extreme Depth Detection

The Gemini 3 is Fisher’s flagship deep-search detector, purpose-built to locate large, deeply buried objects, treasure caches, ore veins, and relics. With advanced VLF technology and precise VCO audio response, it delivers clear target information even in highly mineralized soils. From professional use to serious treasure hunting, the Gemini 3 stands as one of the most powerful two-box detectors on the market.

  • Extreme Depth Detection: Detects large objects up to 15 ft deep (depending on target size and soil).
  • Dual Operating Modes: Choose between Inductive Search and Conductive Trace for versatile performance.
  • VCO Audio Response: Provides variable tone intensity for precise pinpointing.
  • Manual Ground Balance: Optimizes performance in challenging ground conditions.
  • Rugged Build: Durable, field-ready construction built for demanding environments.

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Why Buy from Serious Detecting

  • Fast, free U.S. shipping on most orders
  • Authorized Fisher dealer with full manufacturer warranty
  • Exclusive bundle savings and seasonal promotions
  • Expert support from real detectorists

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