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  2. Unearth Your Next Hobby With These Expert-Recommended Metal ...

    www.aol.com/best-metal-detectors-uncover-buried...

    Scavenge for gold, coins, and other buried treasure with these metal detectors, including models from Garrett, Nokta, and Minelab.

  3. Codan - Wikipedia

    en.wikipedia.org/wiki/Codan

    They also produce metal detectors for the consumer market. The company has manufacturing, distribution and customer service operations in Adelaide (Australia), Cork (Ireland) and Naperville (US), and is an ISO 9001:2000 Quality Endorsed Company. Minelab was established in 1985 and was acquired by Codan in March 2008.

  4. Metal detector - Wikipedia

    en.wikipedia.org/wiki/Metal_detector

    A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft, and a variable-shaped pickup coil. When the coil nears metal, the control box signals its presence with a ...

  5. Underwater cutting and welding - Wikipedia

    en.wikipedia.org/wiki/Underwater_cutting_and_welding

    Shielded metal arc cutting cuts the metal by melting it with the intense heat of the arc, without burning it with oxygen, which works better for carbon steel plate less than 6mm thick and for non-ferrous and corrosion resistant metals of any thickness.: Ch. 1 Underwater shielded metal arc cutting is a simple process.

  6. Magnetic anomaly detector - Wikipedia

    en.wikipedia.org/wiki/Magnetic_anomaly_detector

    A magnetic anomaly detector ( MAD) is an instrument used to detect minute variations in the Earth's magnetic field. [1] The term refers specifically to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field ); military MAD equipment is a descendant of ...

  7. Long-range locator - Wikipedia

    en.wikipedia.org/wiki/Long-range_locator

    Long-range locator. A long-range locator is a class of fraudulent devices purported to be a type of metal detector, supposedly able to detect a variety of substances, including gold, drugs and explosives; most are said to operate on a principle of resonance with the material being detected.

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