Hand held metal detector, three sensitivity levels, LED indicator light, audio and vibration alarm

SKU: GW50.0074

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Approximately 3.5 inches. 
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It detects various metals, including iron, nickel, copper, brass, tin, lead, gold, silver, bronze, etc. 
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The probe of the pointer is waterproof and can be submerged underwater. But the handle is not waterproof.