Metal detectors have undergone seasons of developments adapting to the improving technology to such an extent that now detectors are available based on the type of material to be found. Relic and Coin detectors are also available separately.
Along with the detector selection, site selection should also be based on certain knowledge about its history, rules, permits and laws of the city and the country to execute metal detecting.
While selecting the detectors, it is not mandatory to select one that has all the features in the world. Instead, it should be compared with the requirements of the hobbyist.
Choosing a relic metal detector
Generally, the most preferred land areas specifically for relic hunting are the civil war battle grounds because they would be rich in war buffs. But it is not a simple task, to just pick up your detector and walk towards the battle field. This activity should be backed by concentrated research to find the approximate coordinates of the main battle and previous metal detecting history.
Even soil properties are considered while selecting a metal detector. Since these battle grounds are quite rich in minerals, a detector capable of controlling the ground balance or adjustment is recommended. This is nothing but an ability to differentiate between various junk entities like minerals from the relics which arenot of interest here. This feature is termed as sensitivity where detector neglects some materials and detects other that is of interest to us.
Relics can be made up of various kind of metals. There are certain metals that have lower conductivity and might not be detected by metal detectors. You might miss on some very valuable relics due to this. So another unit of importance here is frequency of the device which if set to low, can detect items with low conductivity too. So if you want to enhance the probability of your search, then ideally the frequency should be low, at least during initial times for gradually narrowing your targets once these low frequency entities are found.
Choosing a coin metal detector
The factors that affects a choice of coin metal detector is similar to the one used while selecting a relic detector. In addition to all those, there are few detectors that detect after certain digging of land and few others that detect before digging up. For beginners, digging would be a time consuming and hectic activity. Hence for them the one that finds coins without much of digging is preferable. After all there should be something to ease the efforts of the beginners.
The scope of a detector depends upon the size of the coil. The bigger it is, more is the scope of the search area, but there are detectors that give you exact point of the hidden treasure and are termed as pinpoint detectors though they are expensive. So one can select a detector based on the requirement and of course the pocket.
A few samples of good relic and coin metal detectors