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  2. 7 Best Metal Detectors of 2023, Reviewed by Experts - AOL

    www.aol.com/7-best-metal-detectors-2023...

    The best metal detectors have a range of frequencies to detect different metals in different locations for a chance for find lost rings, old coins and gold 7 Best Metal Detectors of 2023, Reviewed ...

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

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

    The Best Metal Detectors. Best Overall: Minelab Vanquish 440. Best Value: Garrett Ace Apex. ... Our Full Metal Detector Reviews. Shop Now. Vanquish 440 Metal Detector. amazon.com. $299.00.

  4. Long-range locator - Wikipedia

    en.wikipedia.org/wiki/Long-range_locator

    Many such devices contain non-functional circuitry or naively constructed approximations of radio transmitters. A few do have functional circuitry, putting out a weak signal with a function generator or a simple timer circuit, but are still largely useless in comparison with a coil-based metal detector; others have been found to contain intentionally obfuscated or completely superfluous ...

  5. Metal detector - Wikipedia

    en.wikipedia.org/wiki/Metal_detector

    U.S. Army soldiers use a military standard 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 [dubious – discuss], and a variable-shaped ...

  6. Gerhard Fischer (inventor) - Wikipedia

    en.wikipedia.org/wiki/Gerhard_Fischer_(inventor)

    Although the actual inventor of the hand-held metal detector is disputed, the hand-held metal detector was made in 1925 and was first patented by Dr. Gerhard Fisher in 1931. A metal detector had been invented some forty years earlier (1881) by Alexander Graham Bell for the sole purpose of locating a lead bullet in President James A. Garfield.

  7. We Tested 6 Radar Detectors to Find the Best - AOL

    www.aol.com/tested-6-radar-detectors-best...

    Right off the bat, the detection distances from this radar detector were the best of the bunch; its 2.1-mile rear detection is a half-mile farther than the Uniden R8's. Impressive stuff.

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