This type of coil is used for search for large-sized targets at great depths. The elliptical shape scans large areas at once. A low frequency of 3 kHz is suitable for prospecting for finding large objects made of metal. This option is great for digging of military items and scouting of the terrain in the forest. When compared this coil with a 13-inch and 3 kHz , then this coil loses a little in depth, but the girth of the area with the swing is the same. At the same time, they work on the same principle. This device has a large search area, so it misses important objects less. The coil is suitable for search operations to detect treasures, various hatches and other things. The sensor is high-precision, high-quality and reliable materials are used in the production of it, which allow for a long service life, which is especially important for devices of this type.f
Disadvantages of the coil:
1. The low frequency level is not for finding small sized objects.
Advantages of the coil:
1. The form increases the speed of search work.
2. Excellent features for finding items made of metal.
3. Detects targets even at great depths.