{"products":[{"id":8289276068124,"title":"Fisher CZ-21 Dual-Frequency Underwater Metal Detector with 10.5\" Concentric Waterproof Coil","handle":"fisher-cz-21-metal-detector-with-10-5-concentric-waterproof-search-coil","body_html":"      \u003cp\u003eThe \u003cstrong\u003eFisher CZ-21\u003c\/strong\u003e, known to divers as the \u003cstrong\u003eCZ21 QuickSilver\u003c\/strong\u003e, is a dual-frequency underwater metal detector submersible to 250 feet, built for scuba divers and surf hunters who work saltwater beaches, freshwater lakes, and deep dive sites. This version ships with the larger \u003cstrong\u003e10.5-inch concentric waterproof coil\u003c\/strong\u003e, which covers more ground per sweep and reaches a little deeper on open sand than the 8-inch, making it the choice for wide beach and open-bottom hunting. Where single-frequency VLF detectors chatter in wet salt and black sand, the CZ-21's Fourier Domain signal processing keeps targets clear. It is one of the \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/waterproof-metal-detectors\"\u003eunderwater and waterproof metal detectors\u003c\/a\u003e professionals still rank at the top for saltwater work.\u003c\/p\u003e\n\n      \u003ch2\u003eWhat's included\u003c\/h2\u003e\n      \u003cul\u003e\n        \u003cli\u003eFisher CZ-21 detector with 10.5-inch concentric waterproof search coil\u003c\/li\u003e\n        \u003cli\u003eSubmersible headphones\u003c\/li\u003e\n        \u003cli\u003eTwo-year Fisher manufacturer warranty\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/CZ21_Side_View_Inline.jpg?v=1783700592\" alt=\"Fisher CZ-21 QuickSilver metal detector with control box, shaft, and waterproof search coil\"\u003e\n      \u003cdiv class=\"imgcap\"\u003eThe CZ-21 QuickSilver, with a removable control housing you can belt-mount for deep work.\u003c\/div\u003e\n\n      \u003ch2\u003eWhy divers and surf hunters choose the CZ-21\u003c\/h2\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDual frequency that ignores salt.\u003c\/strong\u003e It transmits 5 kHz and 15 kHz at the same time and reads both through Fourier Domain processing, so wet salt does not false the machine the way it hammers single-frequency detectors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSubmersible to 250 feet.\u003c\/strong\u003e Covers every surf zone and most recreational dive sites, with no depth anxiety.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMore coverage from the 10.5-inch coil.\u003c\/strong\u003e The larger coil sweeps more ground and reaches a bit deeper on open sand, ideal for clearing wide beaches and flats.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManual ground balance for iron-heavy sites.\u003c\/strong\u003e Zeroes out soil minerals so you hear targets in trashy freshwater swim areas and old beach fills.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRemovable control housing.\u003c\/strong\u003e Detach the box, clip it to your belt or BC, and work the coil on an extended arm in current or tight spaces.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/CZ21_Lifestyle.jpg?v=1783700592\" alt=\"Scuba diver underwater using the Fisher CZ-21 metal detector searching a sandy ocean floor\"\u003e\n      \u003cdiv class=\"imgcap\"\u003eOn the bottom. Dual frequency keeps working in high-conductivity saltwater without PI drift.\u003c\/div\u003e\n\n      \u003ch2\u003eWhere the CZ-21 with a 10.5-inch coil performs best\u003c\/h2\u003e\n      \u003ch3\u003eOpen beaches and sand flats\u003c\/h3\u003e\n      \u003cp\u003eThe 10.5-inch coil is at its best on wide, open ground where coverage and depth matter more than tight separation. On dry sand, wet sand, and the wash, the larger footprint clears more area per sweep and helps you reach deeper coins, rings, and relics. The 250-foot rating means the same machine follows you from the towel line into the surf without a second thought.\u003c\/p\u003e\n      \u003ch3\u003eLake and river diving\u003c\/h3\u003e\n      \u003cp\u003eFreshwater sites with iron trash, like old swim areas, sunken docks, and flooded homesteads, benefit from the manual ground balance and all-metal auto-tune mode. Ground balance zeroes out mineralization so you hear targets, not soil, and all-metal mode gives maximum depth on open sand flats and mud bottoms. The large-target alert boosts faint signals, which helps at depth and in low visibility.\u003c\/p\u003e\n      \u003ch3\u003eScuba and deep dive sites\u003c\/h3\u003e\n      \u003cp\u003eOur team has taken the CZ-21 to 60 feet on wrecks and old ferry crossings. The dual frequency keeps working in high-conductivity saltwater without the drift you get from pulse induction machines that were not designed for discrimination. Touch-button controls and VCO no-motion pinpointing let you mark a target, set the detector on the bottom, and dig without losing the signal.\u003c\/p\u003e\n\n      \u003ch2\u003eWhich coil should you choose, 8 inch or 10.5 inch?\u003c\/h2\u003e\n      \u003cp\u003eBoth coils are genuine CZ-21 waterproof concentric coils. Pick by where you hunt.\u003c\/p\u003e\n      \u003ctable class=\"cmp\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eConsideration\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"https:\/\/seriousdetecting.com\/products\/fisher-cz-21-metal-detector-with-8-concentric-waterproof-search-coil\"\u003e8-inch coil\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003e10.5-inch coil (this page)\u003c\/th\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGround coverage\u003c\/td\u003e\n\u003ctd\u003eLess per sweep\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eMore per sweep\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eDepth on open sand\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eSlightly deeper\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eManeuverability in trash\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eBetter separation\u003c\/td\u003e\n\u003ctd\u003eBulkier in tight trash\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eTrashier sites, tight spots, pier pilings\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eOpen beaches, sand flats, dive bottoms\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cp\u003eShort version: choose the 10.5-inch coil for open ground and maximum coverage, or the \u003ca href=\"https:\/\/seriousdetecting.com\/products\/fisher-cz-21-metal-detector-with-8-concentric-waterproof-search-coil\"\u003e8-inch coil\u003c\/a\u003e for trashier, tighter sites.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Frequencies:\u003c\/strong\u003e 5 kHz and 15 kHz (dual frequency, simultaneous)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoil:\u003c\/strong\u003e 10.5\" concentric waterproof search coil\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e Submersible to 250 ft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio:\u003c\/strong\u003e 3-tone target ID (low, mid, high)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGround Balance:\u003c\/strong\u003e Manual\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetect Modes:\u003c\/strong\u003e All-metal auto-tune, discrimination\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePinpointing:\u003c\/strong\u003e VCO no-motion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Housing:\u003c\/strong\u003e Removable for belt-mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeadphones:\u003c\/strong\u003e Submersible headphones included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA (Texas)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Two years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n      \u003ch2\u003eWhy buy from Serious Detecting\u003c\/h2\u003e\n      \u003cp\u003eAs an \u003ca href=\"https:\/\/seriousdetecting.com\/pages\/customer-care__about-us\"\u003eauthorized Fisher dealer\u003c\/a\u003e, every CZ-21 ships with a genuine two-year manufacturer warranty backed by Fisher's US support and service. Our team has run \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/fisher\"\u003eFisher metal detectors\u003c\/a\u003e in surf, lakes, and dive sites across the country, so we can walk you through coil choice, ground balance, and audio tuning for your conditions. Comparing machines in the \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/metal-detectors-1000-to-3000\"\u003e$1,000 to $3,000 range\u003c\/a\u003e? We will help you match the right tool to your sites. Free shipping, 30-day returns, and a price-match guarantee.\u003c\/p\u003e\n   \n","published_at":"2024-09-20T12:11:53-04:00","created_at":"2023-05-18T20:23:37-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Metal Detectors","tags":[],"variants":[{"id":45210870743324,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"CZ21-10","requires_shipping":true,"taxable":true,"featured_image":{"id":41206157967644,"product_id":8289276068124,"position":2,"created_at":"2023-05-18T20:23:38-04:00","updated_at":"2025-10-28T15:36:03-04:00","alt":null,"width":1000,"height":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10-ALONE.jpg?v=1761680163","variant_ids":[45210870743324]},"available":true,"price":"1579.00","grams":4169,"compare_at_price":"1799.00","position":1,"product_id":8289276068124,"created_at":"2023-05-18T20:23:38-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206157803804,"created_at":"2023-05-18T20:23:38-04:00","position":1,"updated_at":"2025-10-28T15:36:03-04:00","product_id":8289276068124,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10c.jpg?v=1761680163","width":1000,"height":1000},{"id":41206157967644,"created_at":"2023-05-18T20:23:38-04:00","position":2,"updated_at":"2025-10-28T15:36:03-04:00","product_id":8289276068124,"variant_ids":[45210870743324],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10-ALONE.jpg?v=1761680163","width":1000,"height":1000}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":8289275937052,"title":"Fisher CZ-21 Dual Frequency Metal Detector for Underwater Hunting","handle":"fisher-cz-21-metal-detector-with-8-concentric-waterproof-search-coil","body_html":"\u003cp\u003eThe \u003cstrong\u003eFisher CZ-21\u003c\/strong\u003e, known to divers as the \u003cstrong\u003eCZ21 QuickSilver\u003c\/strong\u003e, is a dual-frequency underwater metal detector submersible to 250 feet, built for scuba divers and surf hunters who work saltwater beaches, freshwater lakes, and deep dive sites. Where single-frequency VLF detectors chatter in hot black sand, wet salt, and mineralized mud, the CZ-21's Fourier Domain signal processing keeps targets clear. It ships with an 8-inch concentric waterproof coil, submersible headphones, manual ground balance, 3-tone audio target ID, and a removable control housing you can belt-mount for chest-deep surf or dives past the breakers. It is one of the \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/waterproof-metal-detectors\"\u003eunderwater and waterproof metal detectors\u003c\/a\u003e that professionals still rank at the top for saltwater work.\u003c\/p\u003e\n\u003ch2\u003eWhat's included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFisher CZ-21 detector with 8-inch concentric waterproof search coil\u003c\/li\u003e\n\u003cli\u003eSubmersible headphones\u003c\/li\u003e\n\u003cli\u003eTwo-year Fisher manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Fisher CZ-21 QuickSilver metal detector with control box, shaft, and waterproof search coil\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/CZ21_Side_View_Inline.jpg?v=1783700592\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"imgcap\"\u003eThe CZ-21 QuickSilver, with a removable control housing you can belt-mount for deep work.\u003c\/div\u003e\n\u003ch2\u003eWhy divers and surf hunters choose the CZ-21\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual frequency that ignores salt.\u003c\/strong\u003e It transmits 5 kHz and 15 kHz at the same time and reads both through Fourier Domain processing, so wet salt does not false the machine the way it hammers single-frequency detectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubmersible to 250 feet.\u003c\/strong\u003e Covers every surf zone and most recreational dive sites, with no depth anxiety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual ground balance for iron-heavy sites.\u003c\/strong\u003e Zeroes out soil minerals so you hear targets in trashy freshwater swim areas and old beach fills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable control housing.\u003c\/strong\u003e Detach the box, clip it to your belt or BC, and work the coil on an extended arm in current or tight spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA.\u003c\/strong\u003e Engineered, assembled, and field-tested at Fisher's Texas facility for rugged reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Scuba diver underwater using the Fisher CZ-21 metal detector searching a sandy ocean floor\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/CZ21_Lifestyle.jpg?v=1783700592\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"imgcap\"\u003eOn the bottom. Dual frequency keeps working in high-conductivity saltwater without PI drift.\u003c\/div\u003e\n\u003ch2\u003eWhere the CZ-21 performs best\u003c\/h2\u003e\n\u003ch3\u003eBeach hunting and shallow water\u003c\/h3\u003e\n\u003cp\u003eThe 250-foot rating covers all surf zone work and most dive sites. The control housing detaches from the shaft, so you can clip it to your belt and keep the coil on an extended arm when working waist-deep holes or around pier pilings. The 3-tone audio (low for iron, mid for foil and pull-tabs, high for coins and jewelry) runs through the submersible headphones, so you read targets by ear, not by staring at a screen in glare or murk.\u003c\/p\u003e\n\u003ch3\u003eLake and river diving\u003c\/h3\u003e\n\u003cp\u003eFreshwater sites with iron trash, like old swim areas, sunken docks, and flooded homesteads, benefit from the manual ground balance and all-metal auto-tune mode. Ground balance zeroes out mineralization so you hear targets, not soil, and all-metal mode gives maximum depth on open sand flats and mud bottoms. The large-target alert boosts faint signals, which helps at depth and in low visibility.\u003c\/p\u003e\n\u003ch3\u003eScuba and deep dive sites\u003c\/h3\u003e\n\u003cp\u003eOur team has taken the CZ-21 to 60 feet on wrecks and old ferry crossings. The dual frequency keeps working in high-conductivity saltwater without the drift you get from pulse induction machines that were not designed for discrimination. Touch-button controls and VCO no-motion pinpointing let you mark a target, set the detector on the bottom, and dig without losing the signal.\u003c\/p\u003e\n\u003ch2\u003eFisher 1280X vs CZ-21\u003c\/h2\u003e\n\u003cp\u003eBoth are submersible Fisher machines. Here is how they differ so you can choose.\u003c\/p\u003e\n\u003ctable class=\"cmp\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"https:\/\/seriousdetecting.com\/products\/fisher-1280x-metal-detector-with-8-concentric-waterproof-search-coil\"\u003eFisher 1280X\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003eFisher CZ-21\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil included\u003c\/td\u003e\n\u003ctd\u003e8\" concentric waterproof\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003e8\" concentric waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating frequency\u003c\/td\u003e\n\u003ctd\u003e2.4 kHz single\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003e5 kHz and 15 kHz dual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof rating\u003c\/td\u003e\n\u003ctd\u003eSubmersible to 250 ft\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eSubmersible to 250 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio target ID\u003c\/td\u003e\n\u003ctd\u003eAudio and visual response\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003e3-tone audio target ID\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround balance\u003c\/td\u003e\n\u003ctd\u003eVLF discrimination\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eManual ground balance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphones included\u003c\/td\u003e\n\u003ctd\u003eSubmersible headphones\u003c\/td\u003e\n\u003ctd class=\"hl\"\u003eSubmersible headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eShort version: the 1280X is a simpler, lower-cost submersible for surf and shallow water. The CZ-21 adds dual-frequency stability, 3-tone target ID, and manual ground balance for serious saltwater and dive hunting.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Frequencies:\u003c\/strong\u003e 5 kHz and 15 kHz (dual frequency, simultaneous)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil:\u003c\/strong\u003e 8\" concentric waterproof search coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e Submersible to 250 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio:\u003c\/strong\u003e 3-tone target ID (low, mid, high)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Balance:\u003c\/strong\u003e Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetect Modes:\u003c\/strong\u003e All-metal auto-tune, discrimination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePinpointing:\u003c\/strong\u003e VCO no-motion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Housing:\u003c\/strong\u003e Removable for belt-mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphones:\u003c\/strong\u003e Submersible headphones included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA (Texas)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Two years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy buy from Serious Detecting\u003c\/h2\u003e\n\u003cp\u003eAs an \u003ca href=\"https:\/\/seriousdetecting.com\/pages\/customer-care__about-us\"\u003eauthorized Fisher dealer\u003c\/a\u003e, every CZ-21 ships with a genuine two-year manufacturer warranty backed by Fisher's US support and service. Our team has run \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/fisher\"\u003eFisher metal detectors\u003c\/a\u003e in surf, lakes, and dive sites across the country, so we can walk you through coil choice, ground balance, and audio tuning for your conditions. Comparing machines in the \u003ca href=\"https:\/\/seriousdetecting.com\/collections\/metal-detectors-1000-to-3000\"\u003e$1,000 to $3,000 range\u003c\/a\u003e? We will help you match the right tool to your sites. Free shipping, 30-day returns, and a price-match guarantee.\u003c\/p\u003e","published_at":"2024-09-20T12:11:52-04:00","created_at":"2023-05-18T20:23:27-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Metal Detectors","tags":["advanced","beach-hunting","cz-21","diving","dual-frequency","fisher","metal-detector","saltwater","submersible","underwater","usa-made","waterproof"],"variants":[{"id":45210870186268,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"CZ21-8","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"price":"1549.00","grams":4282,"compare_at_price":"1821.15","position":1,"product_id":8289275937052,"created_at":"2023-05-18T20:23:27-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206157115676,"created_at":"2023-05-18T20:23:27-04:00","position":1,"updated_at":"2023-05-18T20:23:27-04:00","product_id":8289275937052,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-8-5.jpg?v=1684455807","width":1000,"height":1000},{"id":41525947498780,"created_at":"2023-06-19T16:07:26-04:00","position":2,"updated_at":"2023-06-19T16:07:27-04:00","product_id":8289275937052,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/cz21-802_afd044fe-3a09-40d6-b3ea-3fef9e19a82b.jpg?v=1687205247","width":2048,"height":2048},{"id":41525947564316,"created_at":"2023-06-19T16:07:26-04:00","position":3,"updated_at":"2023-06-19T16:07:28-04:00","product_id":8289275937052,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/cz21-803_d95c5ab3-f01c-4fdf-be59-d1b96f334694.jpg?v=1687205248","width":2048,"height":2048}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":10610068619548,"title":"Fisher CZ-21 Metal Detector with 10.5\" Concentric Waterproof Search Coil (Open Box)","handle":"fisher-cz-21-metal-detector-with-10-5-concentric-waterproof-search-coil-open-box-1","body_html":"\u003cp\u003eOpen Box Demo - Fisher CZ-21 Metal Detector with 10.5″ Concentric Waterproof Search Coil, Submersible Headphones, Two-Year Warranty.\u003c\/p\u003e\n\u003cp\u003eThis Versatile, Waterproof metal detector is Submersible up to 250 feet- and features Dual Frequency Fourier Domain Signal Analysis, Easy Manual Ground Balance, High Performance in Mineralized Soil, All Metal Auto-Tune Mode, 3-Tone Audio Target-ID,\u003cbr\u003eThe Fisher CZ-21 is ideal for Beach Hunting, Shallow Water, Lake\/Surf, and even Diving.\u003c\/p\u003e\n\u003ch3\u003eFisher CZ-21 Metal Detector includes the following items:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e10.5\" Concentric Waterproof Search Coil\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubmersible Headphones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTwo-Year Warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCZ-21 Quick Silver premium underwater detector, whether it be dry land, saltwater or fresh water, the CZ-21 delivers.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSaltwater or Fresh Water\u003c\/li\u003e\n\u003cli\u003eSubmersible up to 250 feet\u003c\/li\u003e\n\u003cli\u003eDual Frequency Fourier Domain Signal Analysis\u003c\/li\u003e\n\u003cli\u003eTouch-Button., V.C.O. no Motion, Precise Pinpointing\u003c\/li\u003e\n\u003cli\u003eEasy Manual Ground Balance\u003c\/li\u003e\n\u003cli\u003eHigh Performance in Mineralized Soil\u003c\/li\u003e\n\u003cli\u003eAll Metal Auto-Tune Mode\u003c\/li\u003e\n\u003cli\u003eLarge Target Alert \/ Faint Target Audio Boost\u003c\/li\u003e\n\u003cli\u003e3-Tone Audio Target-ID\u003c\/li\u003e\n\u003cli\u003eRemovable Control Housing for Belt-Mount\u003c\/li\u003e\n\u003cli\u003e8” Search Coil\u003c\/li\u003e\n\u003cli\u003eOperating Frequency: 5 and 15 kHz\u003c\/li\u003e\n\u003cli\u003eFisher Submersible Headphones Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eRecommended\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBeach Hunting\u003c\/li\u003e\n\u003cli\u003eShallow Water\u003c\/li\u003e\n\u003cli\u003eLake\/Surf\u003c\/li\u003e\n\u003cli\u003eDiving\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2025-09-18T13:00:03-04:00","created_at":"2025-09-18T12:57:32-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Metal Detectors","tags":["Demo \/ Open Box"],"variants":[{"id":52996532732188,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"OBWS CZ21-10","requires_shipping":true,"taxable":true,"featured_image":{"id":41206157967644,"product_id":10610068619548,"position":1,"created_at":"2023-05-18T20:23:38-04:00","updated_at":"2025-10-28T15:36:03-04:00","alt":null,"width":1000,"height":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10-ALONE.jpg?v=1761680163","variant_ids":[52996532732188]},"available":true,"price":"1421.10","grams":4169,"compare_at_price":"1799.00","position":1,"product_id":10610068619548,"created_at":"2025-09-18T12:57:32-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206157967644,"created_at":"2023-05-18T20:23:38-04:00","position":1,"updated_at":"2025-10-28T15:36:03-04:00","product_id":10610068619548,"variant_ids":[52996532732188],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10-ALONE.jpg?v=1761680163","width":1000,"height":1000},{"id":41206157803804,"created_at":"2023-05-18T20:23:38-04:00","position":2,"updated_at":"2025-10-28T15:36:03-04:00","product_id":10610068619548,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-10c.jpg?v=1761680163","width":1000,"height":1000}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":10610069111068,"title":"Fisher CZ-21 Metal Detector with 8\" Concentric Waterproof Search Coil (Open Box)","handle":"fisher-cz-21-metal-detector-with-8-concentric-waterproof-search-coil-open-box-1","body_html":"\u003cp\u003e\u003cstrong\u003eOpen Box Demo\u003c\/strong\u003e - CZ-21 Metal Detector with 8″ Concentric Waterproof Search Coil, Submersible Headphones, Two-Year Warranty.\u003c\/p\u003e\n\u003cp\u003eThis Versatile, Waterproof metal detector is Submersible up to 250 feet- and features Dual Frequency Fourier Domain Signal Analysis, Easy Manual Ground Balance, High Performance in Mineralized Soil, All Metal Auto-Tune Mode, 3-Tone Audio Target-ID,\u003cbr\u003eThe Fisher CZ-21 is ideal for Beach Hunting, Shallow Water, Lake\/Surf, and even Diving.\u003c\/p\u003e\n\u003ch3\u003eFisher CZ-21 Metal Detector includes the following items:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e8\" Concentric Waterproof Search Coil\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubmersible Headphones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTwo-Year Warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCZ-21 Quick Silver premium underwater detector, whether it be dry land, saltwater or fresh water, the CZ-21 delivers.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSaltwater or Fresh Water\u003c\/li\u003e\n\u003cli\u003eSubmersible up to 250 feet\u003c\/li\u003e\n\u003cli\u003eDual Frequency Fourier Domain Signal Analysis\u003c\/li\u003e\n\u003cli\u003eTouch-Button., V.C.O. no Motion, Precise Pinpointing\u003c\/li\u003e\n\u003cli\u003eEasy Manual Ground Balance\u003c\/li\u003e\n\u003cli\u003eHigh Performance in Mineralized Soil\u003c\/li\u003e\n\u003cli\u003eAll Metal Auto-Tune Mode\u003c\/li\u003e\n\u003cli\u003eLarge Target Alert \/ Faint Target Audio Boost\u003c\/li\u003e\n\u003cli\u003e3-Tone Audio Target-ID\u003c\/li\u003e\n\u003cli\u003eRemovable Control Housing for Belt-Mount\u003c\/li\u003e\n\u003cli\u003e8” Search Coil\u003c\/li\u003e\n\u003cli\u003eOperating Frequency: 5 and 15 kHz\u003c\/li\u003e\n\u003cli\u003eFisher Submersible Headphones Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eRecommended\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBeach Hunting\u003c\/li\u003e\n\u003cli\u003eShallow Water\u003c\/li\u003e\n\u003cli\u003eLake\/Surf\u003c\/li\u003e\n\u003cli\u003eDiving\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2025-09-18T13:03:34-04:00","created_at":"2025-09-18T13:01:22-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Metal Detectors","tags":["Demo \/ Open Box"],"variants":[{"id":52996537712924,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"OBWS CZ21-8","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"price":"1394.10","grams":4282,"compare_at_price":"1821.15","position":1,"product_id":10610069111068,"created_at":"2025-09-18T13:01:22-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206157115676,"created_at":"2023-05-18T20:23:27-04:00","position":1,"updated_at":"2023-05-18T20:23:27-04:00","product_id":10610069111068,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/CZ21-8-5.jpg?v=1684455807","width":1000,"height":1000},{"id":41525947498780,"created_at":"2023-06-19T16:07:26-04:00","position":2,"updated_at":"2023-06-19T16:07:27-04:00","product_id":10610069111068,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/cz21-802_afd044fe-3a09-40d6-b3ea-3fef9e19a82b.jpg?v=1687205247","width":2048,"height":2048},{"id":41525947564316,"created_at":"2023-06-19T16:07:26-04:00","position":3,"updated_at":"2023-06-19T16:07:28-04:00","product_id":10610069111068,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/files\/cz21-803_d95c5ab3-f01c-4fdf-be59-d1b96f334694.jpg?v=1687205248","width":2048,"height":2048}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":8289310408988,"title":"Anderson Fisher Carbon Fiber Long Travel Shaft","handle":"anderson-fisher-carbon-fiber-long-travel-shaft","body_html":"\u003cp\u003e\u003cstrong\u003eAnderson Fisher Carbon Fiber Long Travel Shaft\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis accessory would give your Fisher's metal detector a great ease for searching great finds in difficult areas. Because of its carbon fiber build, it almost gives no extra weight and can tough out against corrosion. The long reach definitely helps you to reach difficult areas. There is a screw lock system on the end so it can ensure a durable fit of the lower rod.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial - Carbon Fiber\u003c\/li\u003e\n\u003cli\u003eShaft Type - Travel\/Regular\u003c\/li\u003e\n\u003cli\u003eColor - Black\u003c\/li\u003e\n\u003cli\u003eLength - 45\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003eCompatible Metal Detectors:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eFisher 1280X\u003c\/li\u003e\n\u003cli\u003eFisher CZ20\u003c\/li\u003e\n\u003cli\u003eFisher CZ21\u003c\/li\u003e\n\u003cli\u003eFisher Impulse\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2023-05-18T20:58:32-04:00","created_at":"2023-05-18T20:58:32-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Anderson Detector Shafts","product_type":"Metal Detecting Parts \u0026 Accessories","tags":["Clearance"],"variants":[{"id":45211063746844,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"0818CFT","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"price":"122.50","grams":539,"compare_at_price":"242.99","position":1,"product_id":8289310408988,"created_at":"2023-05-18T20:58:32-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206437511452,"created_at":"2023-05-18T20:58:32-04:00","position":1,"updated_at":"2023-05-18T20:58:32-04:00","product_id":8289310408988,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/0818CFT.jpg?v=1684457912","width":1000,"height":1000}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":8289609744668,"title":"Fisher Armrest Assembly for CZ-21, 1280-X, and Gold Bug-2 Metal Detectors","handle":"fisher-armrest-assembly-for-metal-detectors","body_html":"\u003cp\u003eThe Fisher Armrest Assembly is a replacement armrest designed for Fisher 1280-X, CZ-3D, Coin Strike, CZ-21, and Gold Bug-2 metal detectors. Fisher 1280-X owners working in surf or river conditions and Gold Bug-2 prospectors swinging over bedrock need a secure armrest that reduces fatigue during multi-hour sessions. This armrest provides a stable fit and improved ergonomics for extended hunts where comfort directly affects coverage.\u003c\/p\u003e\n\n\n\u003ch2\u003eWhy Fisher 1280-X and Gold Bug-2 Owners Reach for This Armrest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReduces arm fatigue during long detecting sessions by distributing detector weight more evenly across the forearm.\u003c\/li\u003e\n\u003cli\u003eSecure fit on Fisher 1280-X, CZ-21, and Gold Bug-2 stems keeps the detector stable during aggressive swings in water or over rocky ground.\u003c\/li\u003e\n\u003cli\u003eImproved ergonomics allow detectorists to maintain consistent coil control through multi-hour beach or prospecting hunts without discomfort.\u003c\/li\u003e\n\u003cli\u003eDirect replacement for worn or damaged original armrests on Fisher CZ-3D and Coin Strike models, restoring factory comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSecure Stem Fit for Fisher 1280-X and Gold Bug-2 Detectors\u003c\/h2\u003e\n\u003cp\u003eThe armrest mounts securely to the stem on Fisher 1280-X, CZ-21, CZ-3D, Coin Strike, and Gold Bug-2 detectors. Fisher manufactures this assembly at their El Paso, Texas facility to match the stem diameter and mounting interface of these models. The secure fit prevents armrest slippage during aggressive swings in surf or while working steep prospecting hillsides. Detectorists replacing a cracked or worn armrest restore the original comfort level without modifying the detector.\u003c\/p\u003e\n\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fisher 1280-X, CZ-3D, Coin Strike, CZ-21, Gold Bug-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Replacement armrest assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Injection-molded plastic with foam padding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA (Texas)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy from Serious Detecting\u003c\/h2\u003e\n\u003cp\u003eSerious Detecting is an \u003ca href=\"https:\/\/seriousdetecting.com\/pages\/customer-care__about-us\"\u003eauthorized Fisher dealer\u003c\/a\u003e carrying genuine Fisher replacement parts. This armrest is backed by Fisher's manufacturer warranty and ships with free shipping on qualifying orders. Our team runs Fisher detectors in the field and can answer compatibility questions before you order. We offer a 30-day return policy and price-match guarantee. Backed by Fisher's specialized technical support team in the United States.\u003c\/p\u003e","published_at":"2024-09-25T16:16:11-04:00","created_at":"2023-05-19T00:34:43-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Metal Detecting Parts \u0026 Accessories","tags":["armrest","comfort","detector-accessory","ergonomics","fisher","fisher-1280x","fisher-coin-strike","fisher-cz-21","fisher-cz-3d","fisher-gold-bug-2","metal-detecting-parts","replacement-part","usa-made"],"variants":[{"id":45212245459228,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"2021101000","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"12.00","grams":145,"compare_at_price":"13.99","position":1,"product_id":8289609744668,"created_at":"2023-05-19T00:34:43-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41208013619484,"created_at":"2023-05-19T00:34:43-04:00","position":1,"updated_at":"2023-05-19T00:34:43-04:00","product_id":8289609744668,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/2021101000.jpg?v=1684470883","width":1200,"height":1200},{"id":41208013652252,"created_at":"2023-05-19T00:34:43-04:00","position":2,"updated_at":"2023-05-19T00:34:43-04:00","product_id":8289609744668,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/2021101000b.jpg?v=1684470883","width":1200,"height":1200},{"id":41208013685020,"created_at":"2023-05-19T00:34:43-04:00","position":3,"updated_at":"2023-05-19T00:34:43-04:00","product_id":8289609744668,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/2021101000c.jpg?v=1684470883","width":1200,"height":1200},{"id":41208013717788,"created_at":"2023-05-19T00:34:43-04:00","position":4,"updated_at":"2023-05-19T00:34:43-04:00","product_id":8289609744668,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/2021101000d.jpg?v=1684470883","width":1200,"height":1200}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":8289350484252,"title":"Fisher CZ-21 Instruction Manual Digital","handle":"fisher-cz-21-instruction-manual-digital","body_html":"\u003cp\u003eFisher CZ-21 Instruction Manual Digital\u003c\/p\u003e\n\u003cp\u003eAs soon as your order is completed with your digital Fisher CZ-21 Instruction Manual, you'll be able to download the digital file(s) from the confirmation page, confirmation email, or from your account.\u003c\/p\u003e","published_at":"2023-05-18T21:46:23-04:00","created_at":"2023-05-18T21:46:23-04:00","updated_at":"2026-07-14T06:43:38-04:00","vendor":"Fisher","product_type":"Books \u0026 Reference Material","tags":["Digital Manual"],"variants":[{"id":45211309015324,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"fishercz21manual","requires_shipping":false,"taxable":true,"featured_image":{"id":41206784033052,"product_id":8289350484252,"position":1,"created_at":"2023-05-18T21:46:23-04:00","updated_at":"2023-05-18T21:46:23-04:00","alt":null,"width":1000,"height":1000,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/001_cz21.jpg?v=1684460783","variant_ids":[45211309015324]},"available":true,"price":"0.00","grams":0,"compare_at_price":null,"position":1,"product_id":8289350484252,"created_at":"2023-05-18T21:46:23-04:00","updated_at":"2026-07-14T06:43:38-04:00"}],"images":[{"id":41206784033052,"created_at":"2023-05-18T21:46:23-04:00","position":1,"updated_at":"2023-05-18T21:46:23-04:00","product_id":8289350484252,"variant_ids":[45211309015324],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0760\/1464\/9628\/products\/001_cz21.jpg?v=1684460783","width":1000,"height":1000}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]}]}