The first thing that comes to mind is the search for gold.
In fact, metal detector It is used very widely in everyday life. This is simply an indispensable thing in construction and repair work (if you decide to make a major overhaul yourself, for example, it will help to detect hidden metal wiring in a concrete wall or metal pipes).
Also, the metal detector can be used to independently search for metal objects in the summer cottage, to clean the soil, which negatively affect the productivity of the crop.
There are 3 types of metal detectors:
- initial level (detection depth up to 70 cm, depending on the size of the metal product)
- average level (usually it has an LCD display, there is also a VDI function - the function determines the type of object with an accuracy of 70%. Detection depth up to 150 cm)
- professional level (detection depth up to 200 cm. Object detection accuracy 80%. The main advantage of this type is the presence of digital signal processing by a microprocessor.)
Cost: ~ 1000