Search coil SEF 30cm.x25cm. DD for Golden Mask 4/PRO and Golden Mask 1+ 18Khz with
free coil protector and gold galvanized connector.
Deeper and with perfect
separation of the signals in very trash sites.
9cm. diameter non-Ferro metal in high mineralization -
55cm. with discrimination.
Watch the video too see how it works in super trash area.