Jump to content

Fisher Gemini-3

   (0 reviews)

Steve Herschbach
  • Price: $ 649 Freq: Two Box Weight: 7.5 lbs Waterproof?: No Current?: Yes

The Fisher Gemini-3 metal detector was introduced in 1988 and is still in production. It is worth mentioning that the Gemini-3 is a direct descendent of the 1938 Fisher Metallascope or "M-Scope", the first ground penetrating metal detector to receive a patent. The Gemini-3 is a "two-box" metal detector that is designed for finding large objects at depth. Two box detectors are not sensitive to items much smaller than a baseball, but can detect large items like a 55 gallon drum or water main to depths exceeding ten feet. Two box detectors are a favorite of the classic "treasure hunter" but are more often used by utility companies and surveyors.

"Two-box metal detectors are used by prospectors, geologists, treasure hunters and public utility companies to locate large, deep objects, ore veins, pipes and cables. Fisher Labs, the recognized leader in the field, was granted the first two-box metal detector patent in 1938. The GEMINI-3 is respected for being the best there is because it goes deeper, traces farther and is easier to use than any other cache finder in its class." Source: Fisher 2014 catalog

Fisher Gemini-3 metal detector

  • V.C.O. audio response for target pinpointing
  • Inductive Search Mode
  • Conductive Trace Mode
  • Wide and Narrow Scan Inductive Trace modes
  • 60-Cycle Noise Reduction circuitry
  • Power On-Off Push-Pull switches
  • Uses 16 AA batteries; 8 in Transmitter and 8 in Receiver
  • Battery Test Meters
  • 81.92 kHz Operating Frequency
  • Weight: 7.5 lbs. (3.4 kg)
  • 5 Year Warranty

Official Fisher Gemini-3 Product Page

Fisher Gemini-3 Owner's Manual

First Texas (Fisher) Metal Detector Forum


User Feedback

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.


  • Create New...