Nokta 8.5" DD Search Coil SP22 for the Nokta Simplex+ metal detector. This is an optional search coil for the Nokta 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 metal detectors. Includes coil cover.