This coil has a small size, operates on the well-known DD-technology. The quietest and most stable coil. The basis of this technique is a winding in two layers, which for the better affects the level of depth of objects. It is worth noting the increase in the territory of detection of objects, compared with mono-devices. The main advantage is that the coil reads objects equally well at different depths without manifesting invisible territories. The metal detector more accurately recognizes signals without incorrect records. A lower frequency level helps to increase the distance, and the small size will allow you to work in areas where there is a huge amount of metal litter. It can be used in several series of popular metal detectors. The coil is successfully used in fields where there is a lot of garbage and in conditions where it is impossible to make a large swing, it can be tall grass, attics etc.
Disadvantages of the coil:
1. The small size is not suitable for large-scale work, where you need to explore large areas.
Advantages of the coil:
1. In littered areas, work is carried out in a stable mode.
2. You can find targets of various sizes.