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May 27, 2026 - 11:15 AM
The Deus II's FMF mode handles wet salt sand and mineralized black sand without the ground-phase drift that plagues single-frequency VLF machines. The coil is waterproof to 20 meters, so you can hunt shallow surf zones and work the tide line without system failure. Detectorists hunting saltwater beaches run FMF mode for stable target ID on gold rings and chains, and the system's multi-notch discrimination lets you filter bottle caps and pull-tabs without losing good targets. For full submersion diving, an optional waterproof antenna is required when the coil is submerged beyond wading depth.
