The 9" Concentric 18.75 kHz Coil has the same properties as the 7.5 kHz version but is more sensitive to lower conductive materials such as small coins and jewellery.
It is preferred for coin and treasure hunting as the concentrated search field provides accurate pinpointing and improved identification of targets.
The higher frequency of the coil also improves audio stability over wet beach sand.
The 9" Concentric 18.75 kHz coil offers water protection and is waterproof submersible to 1 meter making it ideal for shallow wadding at the beach or detecting in shallow streams
The 9" Concentric 18.75 kHz Coil is compatible with the following Metal Detectors: X- TERRA 705 Gold Pack, X- TERRA 705, X- TERRA 505, X- TERRA 305, X- TERRA 70, X- TERRA 50.
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