Nokta Makro 8.5" DD Search Coil SP22 for the Nokta Makro Simplex+ metal detector. This is an optional search coil for the Nokta Makro Simplex+ and Simplex+ WHP metal detectors. Round in shape, this medium sized coil that will detect individual targets such as coins, relics and jewelry with great accuracy. This is not compatible with other models of Nokta Makro metal detectors. Includes coil cover.