Modern metal detectors include a display on their control box to help you better interpret the sounds coming from the device and avoid digging up unwanted items. This information translates into the detector emitting different sounds, which indicate different kinds of metal. But how do metal detectors work?Ī metal detector sends out a signal at a specific frequency into the area below the device's plate, and any metallic objects nearby will provide feedback to the detector. You may have seen someone using one of these devices, which emit a mysterious assortment of tones as it is swept across the ground. But if you're really interested in hunting for coins, jewelry, and even silver and gold that's hiding at the beach, underwater, or off on some woodsy trail, you'll want to have a good metal detector. Sure, you could possibly stumble upon lost treasure by dumb luck. Works best for gold, less effective for locating other metals.
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