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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...

   Stan Ross started metal detecting in 1971. In 2012, while living on the beachfront in Seal Beach, CA, he joined The Ring Finders, a directory of metal detecting specialists that help people find ...

4. 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 ...

5. 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 ...

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. Cost Of Adding Metal Detectors To Subway Stations In NYC - AOL

   www.aol.com/cost-adding-metal-detectors-subway...

   In 2018, the New York Police Department tested a pilot program using metal detectors at one of the busiest stations in Times Square. However, it wasn't effective because of long wait times and the ...