--- product_id: 11719761 title: "CZ21-8 Underwater Metal Detector" brand: "fisher" price: "₩4371692" currency: KRW in_stock: true reviews_count: 8 category: "Fisher" url: https://www.desertcart.kr/products/11719761-cz21-8-underwater-metal-detector store_origin: KR region: South Korea --- # Submersible up to 250ft 3-Tone Audio Target ID 100-hour battery life CZ21-8 Underwater Metal Detector **Brand:** fisher **Price:** ₩4371692 **Availability:** ✅ In Stock ## Summary > 🌟 Uncover Hidden Treasures with Confidence! ## Quick Answers - **What is this?** CZ21-8 Underwater Metal Detector by fisher - **How much does it cost?** ₩4371692 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/11719761-cz21-8-underwater-metal-detector) ## Best For - fisher enthusiasts ## Why This Product - Trusted fisher brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built for the Elements:** IP54 rated for durability in both saltwater and freshwater adventures. - • **Dive Deep, Discover More:** Unleash your inner treasure hunter with a submersible design that goes down to 250 feet! - • **Lightweight & Adjustable:** At just 6.6 lbs, this detector is easy to carry and adjust for any user. - • **Versatile Frequency Options:** Switch between 5 kHz and 15 kHz for optimal performance in any environment. - • **Precision at Your Fingertips:** Experience touch-button pinpointing for accurate target identification. ## Overview The Fisher CZ21-8 Underwater Metal Detector is a high-performance device designed for both saltwater and freshwater use, capable of submersion up to 250 feet. It features dual frequency operation, precise pinpointing capabilities, and a robust design suitable for beach hunting, diving, and more. With a lightweight build and an impressive battery life of 100 hours, this metal detector is perfect for both amateur and professional treasure seekers. ## Description The CZ-21 is housed in the most rugged enclosure and has a collapsible pole assembly. A short pole assembly is desired when diving, but full extension is preferred when standing or wading. The CZ-21 is submersible to 250 feet. The control housing can be easily removed for hipmounting or it can be chest-mounted with an optional chest harness. The CZ-21 has a reputation for being the best saltwater metal detector ever made but can be used in freshwater. The CZ-21 is a multi-frequency metal detector that has adjustable discrimination, is easy to use and designed to handle the toughest mineral concentrations on any salt or fresh water beach. The CZ-21 also has Audio Tone Target-ID, a highly sought-after feature that allows users to distinguish iron targets from gold.The CZ-21 delivers! Features:Dual Frequency Fourier Domain Signal AnalysisOne touch Pinpoint (V.C.O. non-motion)Manual Ground BalanceAll Metal Auto-Tune ModeDiscrimination Mode with 3-tone Audio Target-IDLarge target alert audio, faint target audio boostAdjustable Sensitivity, Discrimination and VolumeBattery Test ModeFully Collapsible Pole AssemblySubmersible to 250 feet (76 m)Removable control housingUses four 9V Alkaline batteries8” (20 cm) Concentric Round Open Searchcoil5 kHz and 15 kHz Operating FrequenciesWeight: 5.3 lbs. (2.4 kg)2 Year Warranty ## Features - Saltwater or fresh water - submersible up to 250 feet - dual frequency fourier domain signal analysis - Touch-button., vco no motion, precise pinpointing - easy manual ground balance - high performance in mineralized soil - All-metal auto-tune mode - large target alert / faint target audio boost - 3-Tone Audio Target ID - Removable Control Housing for Belt Mount - 8” and 10” Coil Options - Operating Frequency: 5 and 15 kHz - Recommended for: beach hunting, shallow water, lake /surf, diving ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001LTSM4A | | Adjustable Length | Yes | | Are Batteries Required | Yes | | Batteries Required? | Yes | | Battery Average Life | 100 Hours | | Best Sellers Rank | #1,695,615 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,305 in Metal Detectors | | Brand | Fisher | | Brand Name | Fisher | | Color | Black | | Customer Reviews | 4.1 out of 5 stars 20 Reviews | | Display Type | LCD | | Extended Length | 8 Inches | | Global Trade Identification Number | 00089723999112 | | International Protection Rating | IP54 | | Item Weight | 6.6 Pounds | | Manufacturer | First Texas Products, LLC | | Manufacturer Part Number | CZ21-8 | | Manufacturer Warranty Description | 2 year limited warranty | | Material | ABS Plastic | | Material Type | ABS Plastic | | Model Number | CZ21-8 | | Operating Frequency | 15 KHz | | Power Source | Battery Powered | | UPC | 089723999112 643749858664 | | Unit Count | 1.0 Count | | search coil size | 8 Inches | ## Product Details - **Brand:** Fisher Labs - **Color:** Black - **Batteries Required?:** Yes - **Material:** ABS Plastic - **Power Source:** Battery Powered ## Images ![CZ21-8 Underwater Metal Detector - Image 1](https://m.media-amazon.com/images/I/71w7R18PMrL.jpg) ![CZ21-8 Underwater Metal Detector - Image 2](https://m.media-amazon.com/images/I/7110AEyMquL.jpg) ![CZ21-8 Underwater Metal Detector - Image 3](https://m.media-amazon.com/images/I/91O09YfZWiL.jpg) ![CZ21-8 Underwater Metal Detector - Image 4](https://m.media-amazon.com/images/I/81dVtg4nSmL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***S on March 13, 2015* ### ⭐ Review *by G***. on February 19, 2020* ### ⭐⭐⭐⭐⭐ Review *by C***N on March 27, 2023* ## Frequently Bought Together - Fisher CZ21-8 Underwater Metal Detector - SE Green Prospector's Scoop - 12.5" Heavy-Duty Plastic Tool for Metal Detecting, Gold Panning, Treasure Hunting, and Gardening - Garrett Pro-Pointer A.T. Pinpointer Metal Detector for Adults, Made in USA, Waterproof --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/11719761-cz21-8-underwater-metal-detector](https://www.desertcart.kr/products/11719761-cz21-8-underwater-metal-detector) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-11*