Gemini 3 Metal Detector

Fisher Gemini-3 Two-Box Metal Detector

Standard detectors find what's near the surface. The Gemini-3 finds what's been buried for decades. A professional-grade two-box detector built for deep-seeking and cache locating, it can detect large targets like 55-gallon drums at depths up to 10 feet — and even deeper for larger objects. If you're tracing ore veins, locating underground tanks, or hunting long-buried cache sites, this is the machine for the job.

Running at 81.92 kHz with V.C.O. audio response, the Gemini-3 delivers precise pinpointing even in challenging environments. Four operating modes — Narrow Scan Inductive, Wide Scan Inductive, Inductive Trace, and Conductive Trace — give you the flexibility to work any terrain or target type. Moisture-resistant, field-ready, and built to run all day on AA batteries.

Key Features

• Two-box deep-seeking system — detects large targets up to 10+ feet deep
• 81.92 kHz crystal-controlled frequency — precise, stable performance in any ground
• 4 operating modes — Narrow Scan, Wide Scan, Inductive Trace, Conductive Trace
• V.C.O. audio response — pitch and volume increase with signal strength for precise pinpointing
• Analog meter display — clear signal strength readout
• Moisture-resistant speaker — weather-ready field construction
• 30-hour receiver battery life — all-day operation on AA batteries
• 7.5 lbs complete system — ergonomic handle and padded grip

Specifications

• Brand: Fisher Research Labs
• Manufacturer: First Texas Products, LLC
• Technology: RF Induction / V.C.O.
• Frequency: 81.92 kHz
• Operating Modes: Narrow Scan Inductive | Wide Scan Inductive | Inductive Trace | Conductive Trace
• Ground Balance: Manual (Balance knob)
• Discrimination: No
• Target ID: No
• Audio: V.C.O. (pitch and volume increase with signal)
• Display: Analog meter
• Headphone Jack: Yes (1/4")
• Weight: 7.5 lbs (3.4 kg) complete system
• Battery: 8 × AA transmitter, 8 × AA receiver (alkaline recommended)
• Battery Life: Transmitter ~25 hrs | Receiver ~30 hrs
• Country of Origin: USA
• Warranty: 2 Years

Free shipping on orders over $50. 30-day returns on all unused gear.

Hand-Inspected. Built for the Hunt.