By providing clear and accurate audio feedback

🔹 Portable & Stackable DesignLightweight yet sturdy

Waterproof Search Coil: The included 11" DD coil is fully waterproof

It offers enhanced performance for both beginner and advanced metal detecting enthusiasts

Fisher CZ21-8 Quicksilver Dual-Frequency Scuba Metal Detector - Waterproof Upto 250 feet RC Accessories By providing clear and accurateFisher CZ 21 Professional Submersible Metal Detector The Fisher CZ 21 is a fully submersible, dual frequency metal detector designed for professionals who require absolute reliability beneath the surface. Engineered for underwater exploration, saltwater environments, and demanding shoreline conditions, the CZ 21 offers a distinguished blend of depth, stability, and elegant simplicity. With its proven dual frequency design, rugged marine grade