Fisher Research Labs Gemini-3 2-Box Metal Detector f/Cache Locating 82 kHz Freq

2-Box treasure hunters know that Fisher's Gemini-3 has a reputation for being the best there is. Designed to locate deep objects; depending on ground mineralization and target size, objects may be detected 10 to 15 feet. The Gemini-3 goes deeper, traces farther and is easier to use than any other cache finder in its class. Two-box metal detectors have long been used by prospectors, geologists, treasure hunters and public utility companies to locate large, deep objects, ore vein, pipes and cables. Fisher Research Laboratory is the recognized leader in the field, in fact, they were granted the first two-box metal detector patent over 60 years ago. You might think it would be difficult to improve on a product that has been in a constant state of development for so many years. But the fact is, the GEMINI-3 is probably the biggest leap forward in two-box design since it replaced vacuum tubes with transistors back in the 1950s. The new GEMINI-3 goes 10 to 20 percent deeper than its predecessor. It will trace most pipes and ore veins at least 50 percent farther and the new crystal controlled circuitry is rock stable. The old metal-rim antenna is gone and so are the hard-to-get batteries. The GEMINI-3 is easier to use, two pounds lighter & features Voltage Controlled Oscillator (V.C.O.), audio target response for precision pinpointing. Your Fisher GEMINI-3 is a high quality, precision instrument engineered by the oldest and proudest name in metal detectors. Controls Receiver Power Off-on, push-pull switch. Sensitivity Potentiometer controls sensitivity to targets and ground minerals. Battery Test Push button switch for battery strength indication on meter. Transmitter Power Off-on, push-pull switch. Battery Test Battery strength indication on meter. Null Adjustment Knob with threaded shaft. Detects all metals Sensitive to large, deep objects or ore veins. Crystal controlled 82 kHz transmitter and receiver. Four mode operation Inductive Trace, Conductive Trace, Wide Scan Inductive Trace and Narrow Scan Inductive Trace.