{"product_id":"waterproof-ground-metal-detector-with-discrimination-mode","title":"Waterproof Ground Metal Detector with Discrimination Mode","description":"\u003cp\u003e\u003cstrong\u003eThe same electromagnetic induction principles Maxwell formalized in the 1860s now let you distinguish buried iron from silver at 25 cm depth.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGround-penetrating metal detectors work by transmitting an oscillating magnetic field and analyzing the phase shift of eddy currents induced in conductive objects. Discrimination circuitry filters ferrous junk from non-ferrous targets by comparing the phase angle of the return signal — pure applied physics every time you pull the trigger. Fully waterproof search coil handles beach hunting, stream beds, and wet soil.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDetection depth up to 25 cm (iron), 20 cm (coin-size non-ferrous)\u003c\/li\u003e\n\u003cli\u003e5-segment discrimination display with adjustable sensitivity (10 levels)\u003c\/li\u003e\n\u003cli\u003eWaterproof 26 cm DD coil — submersible to 1 m\u003c\/li\u003e\n\u003cli\u003eLCD target ID with pinpoint mode; 2× AA batteries, 20+ hr runtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery purchase directly funds independent physics research at the Golden Physics Project.\u003c\/em\u003e\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54144342556964,"sku":"GPP-DET-METAL","price":129.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/Flughafenkontrolle.jpg?v=1781220442","url":"https:\/\/shop.goldenphysics.org\/products\/waterproof-ground-metal-detector-with-discrimination-mode","provider":"Golden Physics Project","version":"1.0","type":"link"}