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Jun 03, 2026 - 09:54 AM
Iron bias is a discrimination control that adjusts how aggressively the detector rejects ferrous targets, running from -1 to 2 on the X-TERRA ELITE. Higher iron bias settings (1 or 2) make the detector more likely to reject iron and less likely to false on rusty nails or bottle caps, useful in trashy parks and old homestead sites with high iron density. Lower iron bias settings (-1 or 0) reduce the risk of rejecting non-ferrous targets that read near the ferrous/non-ferrous boundary, such as small gold jewelry or colonial-era relics with corroded surfaces. Start at the default setting (0) and increase iron bias when iron falsing becomes a problem, or decrease it when you suspect you're missing good targets in clean ground.
