These extremely sensitive coils operate on a wide range of 21 frequencies
these headphones are built to withstand various environmental conditions
non-ferrous targets have a higher tone and show a higher target ID number
Compatible with all Garrett models
and Infinium LS metal detectors
Detech 13" Ultimate Search Coil for Fisher F75, F75+, F75 LTD, F70 Metal Detectors Fisher F70 These extremely sensitive coils operateDetech 13" Ultimate Search Coil for Fisher F75, F75+, F75 LTD, F70 Metal Detectors The Detech 13" Ultimate Search Coil is designed for use with Fisher F75, F75+, F75 LTD, and F70 metal detectors. This coil offers significant advantages over standard Double D search coils. Advantages of the Ultimate Coil Design Better ground balance More stable operation Deeper detection depth Better pinpointing More accurate target identification High Quality