Fisher CZ-21 Metal Detector with 8" Concentric Waterproof Search Coil (Open Box) 36-inch-length and the included coil cover

and the included coil cover guards against abrasive rock contact that wears through bare coil housings

10" Double-D Smart coil (hard-wired)

these are specifically engineered for metal detecting applications

6 lbs) with battery

Fisher CZ-21 Metal Detector with 8" Concentric Waterproof Search Coil (Open Box) 36-inch-length and the included coil coverOpen Box Demo CZ 21 Metal Detector with 8 Concentric Waterproof Search Coil, Submersible Headphones, Two Year Warranty. This Versatile, Waterproof metal detector is Submersible up to 250 feet and features Dual Frequency Fourier Domain Signal Analysis, Easy Manual Ground Balance, High Performance in Mineralized Soil, All Metal Auto Tune Mode, 3 Tone Audio Target ID, The Fisher CZ 21 is ideal for Beach Hunting, Shallow Water, Lake Surf, and even Diving.