So, you've binged a few treasure-hunting shows and now you're wondering if your own old detector in the garage can find you a pirate chest. One of the first questions that may pop up in your head ...

Why would you want to detect metal? Oh, I don't know … maybe you want to find some gold in the ground. You could dig up ALL the dirt, or you could find the location that has the gold before you dig.

While the hope of discovering a horde of Spanish gold doubloons or a priceless Egyptian necklace buried in the city park is always there, many people invest in metal detectors for more practical, ...