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May 20, 2026 - 04:20 PM
The Garrett AT Pro can run on saltwater beaches, but it is not a multi-frequency saltwater specialist like the Equinox or Manticore. Wet salt sand chatters most single-frequency machines, and the AT Pro requires a careful manual ground balance and reduced sensitivity to stay stable. We run STD mode with zero discrimination, iron discrimination at 25, sensitivity between 4 and 6, and re-balance manually as the surf line moves. It grids the tide line and wades chest-deep into the wash for ring drops, but detectorists hunting heavy mineralized wet sand full-time should consider a specialized waterproof coil configuration or a dedicated beach machine.
