enough for a full week of prospecting trips without a recharge

The Ultimate Weatherproof Multi-Purpose Metal Detector

Direct Blue Bowl Compatibility: Engineered specifically to match Blue Bowl concentrator water requirements

This combo ships with both a 6-inch and a 10-inch elliptical waterproof coil

and Civil War-era farm fields combine dense iron trash with occasional non-ferrous targets

Fisher CZ-21 Dual-Frequency Underwater Metal Detector with 10.5" Concentric Waterproof Coil bone-conductor-required enough for a full weekThe Fisher CZ 21, known to divers as the CZ21 QuickSilver, is a dual frequency underwater metal detector submersible to 250 feet, built for scuba divers and surf hunters who work saltwater beaches, freshwater lakes, and deep dive sites. This version ships with the larger 10. 5 inch concentric waterproof coil, which covers more ground per sweep and reaches a little deeper on open sand than the 8 inch, making it the choice for wide beach and open bottom