Fisher CZ-21 Quicksilver Dual-Frequency Underwater Detector 10" Coil

Fisher CZ-21 Quicksilver Dual-Frequency Underwater Metal Detector

Built for Serious Underwater and All-Terrain Detecting

The Fisher CZ-21 Quicksilver is designed for detectorists who need reliable performance in both underwater and land environments. With dual-frequency technology, it delivers strong depth, accurate target response, and stable operation—even in saltwater and mineralized conditions.

Engineered for full submersion, this detector is ideal for diving, beach hunting, and shallow water detecting, giving you the confidence to search where others can’t.

Key Features

• Dual-Frequency Technology
  Improves target detection and accuracy across different ground and water conditions.
• Fully Submersible Design
  Built for underwater use, making it ideal for diving and shoreline detecting.
• Strong Depth Performance
  Capable of detecting deeper targets with consistent signal response.
• Accurate Target Identification
  Helps distinguish between valuable targets and unwanted metals.
• 10" Coil for Balanced Coverage
  Provides a good mix of depth and ground coverage for efficient searching.

Why It Matters

Detecting in water introduces challenges like mineralization and salt interference. A dual-frequency, waterproof detector helps maintain stability and accuracy, allowing you to confidently detect in environments where standard detectors struggle.

Best For

• Underwater and diving detection
• Beach and saltwater environments
• Relic and treasure hunting
• Detectorists needing a rugged, waterproof solution