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

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

    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. These 8 Radar Detectors Are the Ticket to More Informed Driving

    www.aol.com/lifestyle/8-best-radar-detectors...

    Best Radar Detectors. Best Overall: Escort MAX 360c. Most Affordable: Cobra RAD 480i. Most User Friendly: K40-Platinum 100 RC. Best Value: Uniden DFR7. Best Display: Escort Redline 360c.

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