Coil is excellent for finding large targets as well as for small targets which are 1g and more at 25 cm depth. This coil is superior to standard coil in depth by 50% and in ground coverage of between 40%. This coil is recommended for use in open terrain. 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 a coil cover.The Big coil copes excellently with high and medium soil salinity. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Metal Detector Accessories". The seller is "makkedo" and is located in this country: UA. This item can be shipped worldwide.