Recommendations are based on your unique purposes of using Gold Detectors, which can be:
Long Term or Short Term
First of all the buyer must decide if they are going to buy the detector to use for a short period of time, for example one time, three times, one month, one season or a long time for example a few years to life time. This determines the suage pattern and intensity for gold detectors so it will tell how much to invest in such device.
Terrestrial or Under Water
Whether the research must be conducted on the ground surface which is completely dry, on some ground where there may or may not be some water, or if the detectors are purely intended to be used under the surface of water.
For Specific Items or Multipurpose
If the buyer is looking for a specific category of item for example gold nuggets, gold coins, gold relics, statues etc only or if they are interested to look for all or some of these items simultaneously. Because some gold detectors are especially designed to target some type of objects whereas other can be multipurpose with adjustable settings.
For Archaeological Diggings
For diggings of objects buried underneath the ground for a very long time whose shape size or depth can not be actually determined beforehand, some advanced level equipment would be more useful.
For Geological Research
If the buyer would like to take in depth data about the ground and the metals hidden in the ground for the purpose of adding information to the geological science domain, then the accuracy of a professional level instrument with radar technology would be better alternative and its generic land survey can also be useful determining the texture of earth below the surface. .
At Construction Sites
The personnel at construction sites often require checking and separating the metallic residue from the debris, and where and why the metals are used and how the structure of the building could be made better or improvised. So using such equipment would be very beneficial. Because the engineers and construction site developers want to analyze the ground they will be building some structures on, and depending of the type, quality and make up of the ground components underneath, the construction project could be effectively modified.
For Professional Treasure Hunters
People who are working with treasure and detection equipment for a long time and know what they are doing with treasure hunting actually have a very good idea about how large profit potential their land has. So that is why they are willing to invest in such quality gold metal detection equipment to get more efficient and precise results.