Scanning parks and beaches with one of these can be a unique and fascinating hobby.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...

Editor's Note: March 20, 2026: We've checked to ensure our recommendations are in stock and competitively priced. We’re in the process of testing a new round of metal detectors to update this guide.