The Ultimate 13" is considered an absolute reference among metal detector coils.
Developed by Bulgarian company Detech in collaboration with major metal detector manufacturers, it is probably the best coil ever designed on the market.
It provides an increase in depth, stability, power, sensitivity and target separation capacity up to more than 30-50% more than the standard supplied search coils.
Fully compatible with the Fisher F11/F22/F44 , will boost your metal detector performance at unbelievable levels!
The Ultimate 13" DD coil is fully waterproof and it's equipped with a coil cover and the fixing screw .
Compared to classic DD coils, Ultimate 13" has the following advantages: