The Gemini III is designed to locate large, deep objects--like an iron chest, an ore vein or a metal pipe. With its two-box design, it offers much better depth penetration than standard metal detector.
The Gemini-3 is used by professional treasure hunter, prospectors, geologists and public utility employees. Depending on ground mineralization and target size, objects may be detected as deep as 20 feet. A pioneer in the field of metal detector over 60 years ago. Fisher has been advancing the state of art ever since.
The Gemini-3 is Fisher's best two-box ever. If you are a two-box treasure hunter, you probably already know the Fisher Gemini-3 has the reputation for being the best around.