93.9926% OFF$69.99 at Amazon Pros: Cons: The Bounty Hunter metal detector earned the top spot on our list for its ...

Walk-through metal detectors (aka the ones which you often see at public places like airports) seem to be pretty simple machines. You walk through them, they detect anything metal on you (or don't), ...

A traditional early project for someone discovering a love for electronics has been for many years a metal detector. This would mean a few transistors back in the day, but today it’s more likely to ...