Nokta 12" x 9" SC30 DD Coil for Score Series - Waterproof

The SC30 coil is compatible with all three Score series models: the original Nokta Score, the Nokta Score 2 (Double Score), and the Nokta Score 3 (Triple Score). The wired connection fits directly without adapter hardware. If you own any Score model and want a larger coil for deeper targets or wider ground coverage, the SC30 is a direct upgrade. For a full range of compatible accessories, visit the Nokta Score series collection.

The SC30 is larger than the stock coil shipped with Score detectors, which gives you two advantages: deeper detection on individual targets and wider ground coverage per sweep. The DD configuration provides good target separation, so you won't sacrifice precision in trashy sites. Use the SC30 in open fields, beaches, and low-trash relic sites where depth and coverage matter most. Keep the stock coil for dense iron patches and tight urban spaces.

The SC30 coil is completely waterproof and submersible, meaning you can confidently drop it into crashing ocean surf zones, shallow freshwater streams, or saturated mud fields without risking damage. Both the rugged coil housing and the wired strain-relief connection point are pressure-sealed against moisture penetration. This allows Score owners to safely hunt changing tidal lines or work creek beds right after severe storms. Always ensure your connection point to the upper control box is clean and tight before entering wet environments.

DD stands for Double-D, a coil winding pattern where two overlapping D-shaped transmit loops create a narrow detection field down the center. This configuration provides good performance in mineralized soil and delivers tighter target separation in trashy sites where multiple targets overlap. For Score owners hunting iron-heavy parks or wet beach sand, the DD design reduces false signals and keeps target ID stable. The SC30 uses DD technology in a 12x9 footprint for maximum coverage.

The SC30 works in both saltwater and freshwater environments because it pairs a waterproof housing with a DD coil configuration that handles saltwater mineralization. Our team uses the SC30 at Atlantic and Gulf Coast beaches during low tide, and the coil stays quiet in the surf. Ground-balance the detector properly and lower sensitivity if you get chatter in heavy wave action.

The SC30 is larger than the stock coil, so it does increase swing weight and can feel tiring during multi-hour hunts. The 12x9 semi-elliptical shape provides good maneuverability and control. If you're hunting open fields or beaches where you're covering ground quickly, the fatigue tradeoff is worth the depth and coverage gain. For tight spaces or all-day urban hunts, stick with the smaller stock coil.

While the base listing includes the core wired search head, adding a protective cover is highly recommended if you regularly explore rocky riverbeds, gravel paths, or root-choked forest permissions. A form-fitting plastic coil cover shields the bottom resin from abrasive friction, preventing scuffs and extending the lifetime operational health of your gear. If you need to pick up matching guards or want to compare alternative sizes, check out our full collection of [metal detector search coils: dd, concentric, monoloop & sef upgrades](https://seriousdetecting.com/collecti...) to complete your field setup.