Gemini-3
A transmitter and receiver pair for large, deep targets: caches, tanks and ore veins. Detects a 55-gallon drum to about 10 ft.
$959.00US dollars. Free shipping to US addresses.
- Technology
- Two-box, 81.92 kHz
- Modes
- Inductive, conductive; narrow and wide scan
- Depth
- About 10 ft on a 55-gallon drum (maker figure)
- Display
- Analog meter with VCO audio
- New, sealed, with the full Fisher warranty
- Free shipping to US addresses
- We confirm stock and delivery date before you pay
- 30-day returns on unused equipment
Questions about the Gemini-3? Ask us or call +1 (307) 370-3071.
Overview
The Gemini-3 is a two-box detector. A separate transmitter and receiver ignore small objects and reach large ones far deeper than a normal coil, which makes it a tool for cache hunters, utility crews and prospectors tracing veins.
It runs on a crystal-controlled 81.92 kHz signal in inductive or conductive mode, with narrow and wide scan options, an analog meter and VCO audio for pinpointing. Large targets like a 55-gallon drum can be found at about 10 ft, and bigger objects deeper.
Highlights
- Two-box design for large, deep targets
- 81.92 kHz crystal-controlled
- Inductive and conductive modes
- Narrow and wide scan
- About 30 hours receiver, 25 hours transmitter on AA batteries
Specifications
| Technology | Two-box, 81.92 kHz |
|---|---|
| Modes | Inductive, conductive; narrow and wide scan |
| Depth | About 10 ft on a 55-gallon drum (maker figure) |
| Display | Analog meter with VCO audio |
| Battery | AA; about 30 h receiver, 25 h transmitter |
Depth and range figures are the manufacturer's stated maximums. Results vary with soil, target size and conditions.
Specifications from Fisher, checked October 2026.
