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The three main categories metal detectors fall under are land-based coin and relic hunting; beach and underwater detecting and prospecting for gold and other precious metals.

Common causes are leaks in the ceiling or a crack in the exterior of the home which both permit water to enter. If the water is seeping up through the floor, it could be a result of insufficiently-sealed foundations or there could be cracks in the foundation floor.

Discrimination is the ability of a detector to distinguish between one target and another. In other words, being able to tell if the signal you're getting is a quarter or a trash item. There are just as many bottle caps and rusty nails in the soil as valuable treasure, so discrimination saves you time digging up garbage. Most detectors either auto

Yes, most manufacturers produce multi-purpose metal detectors that perform two or more specialized functions.

Metal detectors based on their purpose & features are categorised as entry level, mid level & high end.

The important metal detector features are discrimination, ground balance, target identification, operating frequency, sensitivity & search depth.