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May 18, 2026 - 11:25 AM
The PulseDive's pulse induction technology ignores magnetic mineralization from magnetite in black sand, so it maintains a stable threshold on volcanic beaches without the severe ground noise that VLF detectors produce even with aggressive ground balance settings. Black sand creates false signals in VLF machines because the magnetic particles interfere with the transmit-receive coil balance, but pulse induction doesn't react to magnetic soil. For more guidance on choosing pulse induction versus VLF for different beach conditions, see our pinpointer comparison guide.
