Best Gold and Metal Detectors
Long range locators are a type of metal detector capable of detecting a variety of materials, including gold, drugs, and explosives; most of them are said to work on the principle of resonance with the material being detected. Long range locators work on the principle of resonance frequency as the device sends an electromagnetic signal, either through an antenna or a probe, which will respond to a certain substance such as gold, silver, or sometimes even paper money, and that the device will indicate the presence of such materials by indicating a change in direction for the operator.