CORS Labs Search Coils

CORS Labs DD & Specialty Coils for Garrett, Minelab, Nokta, Fisher & Teknetics

CORS Labs manufactures aftermarket search coils compatible with Garrett, Minelab, Nokta, Fisher, Teknetics, and White's detector platforms. The catalog centers on Double-D (DD) configurations built to handle varied ground conditions, alongside specialty performance designs optimized for specific hunting scenarios. Coil sizes range from compact ellipticals for navigating trashy parks to large round coils for sweeping open fields during relic hunts. Based on our field use, the build quality stands up to rigorous detecting: coils ship with a coil cover, mounting hardware, reinforced cable strain relief, and epoxy-sealed electronics to survive years of dragging through brush and dirt.

Picking the Right Coil Type for Your Hunting Profile

DD coils perform exceptionally well in all ground conditions, making them a versatile choice for environments ranging from red clay to black sand. We regularly run DD coils on waterproof beach detectors in wet saltwater sand and on relic hunting detectors in iron-heavy Civil War sites. Mono coils deliver greater depth than same-size DD coils when hunting in mild ground, but they can lose stability when mineralization rises. For gold prospecting in variable terrain, a small DD coil (6 to 8 inches) balances sensitivity to small nuggets with steady ground-tracking precision. For coin and jewelry hunting in parks with moderate trash, a mid-size DD (10 to 12 inches) offers the best compromise between coverage speed and target separation.

Depth, Target Separation & Performance in Real Hunting Conditions

Upgrading to a larger coil (13 inches and up) provides a noticeable increase in detection depth on coin-size and larger targets compared to most stock coils. However, swing weight rises and target separation can suffer in trashy ground. Smaller coils (under 9 inches) sacrifice raw depth for faster target ID updates and tighter masking rejection, making them the better choice when hunting tot lots, bleacher areas, or gold patches with heavy ironstone. CORS Labs coils maintain factory ground-balance range and tracking speed, ensuring you don't lose auto-balance functionality when you swap your setup. We have tested CORS Labs coils alongside OEM and other aftermarket options on gold prospecting detectors and consistently see excellent sensitivity and durability.

Essential Gear to Pair With Your Upgraded Coil

A deeper-seeking coil means deeper targets and more digging, so recovery gear matters. Pair your new coil with a heavy-duty metal detecting shovel or digger for plugging deep targets in pastures or woods without damaging the item, and add a pinpointer to speed up target recovery in the hole. A quality finds pouch keeps recovered coins and relics secure while you swing. For more field techniques, see our metal detecting tips and FAQs page.