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May 21, 2026 - 11:17 AM
The RC18C is waterproof and can be submerged during surf hunting or shallow creek work without damaging the coil housing or internal components. The waterproof rating supports wet-grass hunting, wading in calm surf, and rinsing the coil after beach sessions. Keep in mind that concentric coils perform best in low-mineralization ground, so heavily mineralized saltwater beaches with black sand will reduce the coil's discrimination advantage compared to a DD coil. Detectorists working freshwater beaches or low-mineral saltwater sites see strong performance from the RC18C in wet sand and shallow water. For those hunting harsher environments, you can explore our complete lineup of the best Nokta metal detectors built to handle heavy saltwater mineralization.
