The Garrett Goldmaster 24k Metal Detector runs at 48 kHz

and rusted nails on top of the deepest coins

so high-conductors like large cents

1/4 ounce storage vial

Garrett ACE 300 Metal Detector with 7x10 Coil serrated digger sheath The Garrett Goldmaster 24k MetalThe Garrett ACE 300 is a single frequency VLF metal detector built around an adjustable 8 kHz operating frequency, a 0 to 99 digital target ID, and four segment iron discrimination that lets us notch out bottle caps and rusted nails while keeping nickels, small jewelry, and brass buttons in the audio. It sits in a sweet spot inside the Garrett ACE Series metal detectors lineup: more capable than the ACE 200, simpler and lighter than the AT or Apex