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it stays secure even when you're dragging the coil across rock jetties during low-visibility searches
44 iron discrimination segments for finer trash rejection
security lanyard
71 kHz High-Frequency Sensitivity to Sub-Grain Gold in Mineralized Soil
Nokta INV28 11x7 DD Waterproof Coil for Invenio Metal Detector grass knife it stays secure even whenThe Nokta INV28 is an 11 inch by 7 inch elliptical DD search coil built for the Nokta Invenio metal detector, delivering wider ground coverage and sharper target separation in mineralized soil and trashy sites. Invenio owners working parks, beaches, and relic fields where multiple targets cluster within a sweep reach for this coil when the stock configuration misses masked finds. The Double D geometry excels in moderate to heavy trash and wet
