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The lack of oxygen in the blood often causes serious heart conditions and other health problems. In as few as 12 hours after quitting smoking, the carbon monoxide in your body decreases to lower levels. In turn, the amount of oxygen in your blood increases to normal levels.

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.

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

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

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

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