Product · United States

RuoShui 862M Magnetic Pole N/S Polar Identification Test Pen Field Magnet Sensitivity Detector Polarity Determination Portable

Product no longer available. The stores we track no longer sell it; last price seen $18.84.

Price history: 2 daily prices tracked since 2026-10-18; lowest $18.84, highest $18.84.

RuoShui 862M Magnetic Pole N/S Polar Identification Test Pen Field Magnet Sensitivity Detector Polarity Determination Portable

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