{"product":{"id":8289459929372,"title":"Nokta KR13 5\" DD Waterproof Coil for Kruzer \u0026 Anfibio Series","body_html":"\u003cp\u003eThe Nokta KR13 5\" DD coil is a compact waterproof search coil built for the Kruzer and Anfibio detector series, engineered to isolate small targets in heavy trash and detect shallow metals that larger coils miss. Kruzer and Anfibio owners working trashy parks, swimming areas, and iron-laden soil gain precise target separation and enhanced sensitivity to small gold and coins from the 5-inch footprint. The DD configuration maintains ground balance in mineralized conditions while the reduced size lets you work around playground equipment and between rocks.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included with the Nokta KR13 5\" DD Coil\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNokta KR13 5\" DD Waterproof Coil for Kruzer \u0026amp; Anfibio\u003c\/li\u003e\n\u003cli\u003eNokta KR13 5\" DD Coil Cover and hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOptimizing the 5\" DD Coil in the Field\u003c\/h2\u003e\n\u003cp\u003eBecause a 5-inch search coil features a tighter electromagnetic field, your sweep speed should be adjusted accordingly. We recommend slowing down your swing speed in high-trash environments to give your Kruzer or Anfibio processor ample time to recover between targets. Overlap your swings by roughly 50% to ensure thorough coverage of the ground matrix, as the compact footprint sacrifices coverage area in exchange for unmatched target separation precision.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Kruzer and Anfibio Owners Reach for the KR13 5\" Coil\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnhanced sensitivity to small and shallow targets that larger coils overlook in trashy sites\u003c\/li\u003e\n\u003cli\u003eSuperior target separation in bottle-cap and pull-tab zones where larger coils mask good signals\u003c\/li\u003e\n\u003cli\u003eFully waterproof construction for beach hunting and water detecting\u003c\/li\u003e\n\u003cli\u003eCompact 5-inch DD design for tight spaces and detailed searching around obstacles\u003c\/li\u003e\n\u003cli\u003eDirect compatibility with all Kruzer and Anfibio series detectors with no additional setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTight Target Separation in Trashy Parks and Swimming Areas\u003c\/h2\u003e\n\n\u003ch3\u003eTrashy Parks with Bottle Caps and Pull Tabs\u003c\/h3\u003e\n\u003cp\u003eThe KR13 5\" coil isolates individual targets in sites where your larger coil returns overlapping signals. We run this coil in urban parks with decades of trash accumulation, and the reduced footprint lets us pick out silver dimes masked by aluminum. The DD configuration holds ground balance in mineralized soil while the 5-inch diameter separates a wheat penny from an adjacent bottle cap. You'll cover less ground per swing, but recovery rate climbs when every signal is a distinct target.\u003c\/p\u003e\n\n\u003ch3\u003eBeach Hunting for Small Gold Jewelry\u003c\/h3\u003e\n\u003cp\u003eSmall gold chains and studs generate weak signals that larger coils miss in wet sand. The KR13 delivers consistent performance in swimming areas where targets concentrate in a narrow band. Our team works the waterline with this coil after summer weekends, and the waterproof construction handles full submersion without performance loss. The compact size maneuvers between beach blankets and around lifeguard stands where a larger coil feels clumsy.\u003c\/p\u003e\n\n\u003ch3\u003eIron-Laden Soil and Mineralized Ground\u003c\/h3\u003e\n\u003cp\u003eThe DD configuration provides excellent ground balance in red clay and black sand where concentric coils struggle. We've used the KR13 in Civil War sites with high iron content, and the coil maintains sensitivity to small targets while providing discrimination. The 5-inch footprint reduces ground coverage but improves depth on small targets in mineralized conditions. Pair this coil with manual ground balance for maximum stability.\u003c\/p\u003e\n\n\u003cfigure\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/20000747_Inline.jpg?v=1779303562\" alt=\"Nokta KR13 5-inch DD Waterproof Coil.\"\u003e\n\u003c\/figure\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Nokta Kruzer, Multi-Kruzer, Anfibio 14 kHz, Anfibio 19 kHz, Anfibio Multi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Size:\u003c\/strong\u003e 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Configuration:\u003c\/strong\u003e DD (Double-D)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e Fully waterproof\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Wired\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy from Serious Detecting\u003c\/h2\u003e\n\u003cp\u003eWe're an \u003ca href=\"https:\/\/seriousdetecting.com\/pages\/customer-care__about-us\"\u003eauthorized Nokta dealer\u003c\/a\u003e, and every KR13 coil ships with the manufacturer warranty. Our team runs Kruzer and Anfibio detectors in the field, and we've tested this coil in trashy parks and wet sand to confirm the target-separation claims. You'll get free shipping, 30-day returns, and our price-match guarantee. Browse our full selection of \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/coils\"\u003emetal detector search coils\u003c\/a\u003e or explore \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/coils-search-coil-shape-round\"\u003eround metal detector search coils\u003c\/a\u003e for alternatives. For technical background on DD versus concentric designs, see our guide to \u003ca href=\"https:\/\/seriousdetecting.com\/pages\/metal-detector-technologies\"\u003emetal detector technologies\u003c\/a\u003e.\u003c\/p\u003e","vendor":"Nokta Detection Technologies","product_type":"Coils","created_at":"2023-05-18T23:23:24-04:00","handle":"nokta-kr13-5-dd-waterproof-search-coil-for-kruzer-anfibio-series","updated_at":"2026-06-04T11:02:23-04:00","published_at":"2023-05-18T23:23:24-04:00","template_suffix":null,"published_scope":"web","tags":"5-inch-coil, anfibio, beach-hunting, compact-coil, dd-coil, kruzer, nokta, search-coil, small-coil, trash-hunting, waterproof-coil, wired-coil","variants":[{"id":45211839398172,"product_id":8289459929372,"title":"Default Title","price":"101.15","sku":"17000106","position":1,"compare_at_price":"119.00","fulfillment_service":"manual","inventory_management":"shopify","option1":"Default Title","option2":null,"option3":null,"created_at":"2023-05-18T23:23:24-04:00","updated_at":"2026-06-04T11:02:23-04:00","taxable":true,"barcode":"8680734401063","grams":794,"image_id":null,"weight":1.75,"weight_unit":"lb","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"USD","compare_at_price_currency":"USD","quantity_price_breaks":[]}],"options":[{"id":10507557404956,"product_id":8289459929372,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":41207473078556,"product_id":8289459929372,"position":1,"created_at":"2023-05-18T23:23:24-04:00","updated_at":"2023-05-18T23:23:24-04:00","alt":"Nokta KR13 5\" DD waterproof search coil with black housing and wired connection for Kruzer and Anfibio detectors","width":1600,"height":1600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/20000747.jpg?v=1684466604","variant_ids":[]}],"image":{"id":41207473078556,"product_id":8289459929372,"position":1,"created_at":"2023-05-18T23:23:24-04:00","updated_at":"2023-05-18T23:23:24-04:00","alt":"Nokta KR13 5\" DD waterproof search coil with black housing and wired connection for Kruzer and Anfibio detectors","width":1600,"height":1600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/20000747.jpg?v=1684466604","variant_ids":[]}}}