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This Easy-To-Use Metal Detector Can Help You Find Lost Items — And This Price Can't Be Beat

Don’t kid yourself: You’ve probably always wanted a metal detector. After seeing them in so many movies and television shows, and maybe even hobbyists at the beach using one, maybe it’s about time you ...
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Your smartphone has a metal detector — here's how to use it

Modern smartphones are packed with a wide range of sensors, and their magnetometer can successfully identify certain kinds of metals.