If you've shopped for a metal detector, you know there are many brands with a wide range of features, price points, and user ...

It was initially hard to weigh these distinct traits, but after testing these machines myself, the features worth springing for became clear. How Metal Detectors Work If you’re going to shop for ...

[Dzl] starts his write up with an explanation of how most oscillator based metal detectors work. This one differs by using an Arduino to read from the metal detecting coil. The circuit starts with ...

[Huygens Optics] has a VLF-based metal detector that offers much more feedback than just a beep or no beep. This thing is fancy enough to discriminate between types of metal and report back a ...