The Storm Coil is designed to detect medium and small targets at depth which is unattainable for any other standard coils. Working with a slow swing will maximize its ability in finding not only large and medium targets but small targets which weigh less than 1g at 20 cm deep as well. The Storm coil is suited for finding coins, treasures and artifacts in the field of military battles in any territory. This coil is superior to standard coil in depth by 35% and in ground coverage of between 20%. The coil is fully submersible, body is filled with epoxy resin and additionally has a black protective coating that is used for the protection of marine boats, and it makes it possible to use the coil without coil cover. The coil copes excellently with high and medium soil salinity. Recommended for professionals.