seriousdetecting.comAnswer
Feb 11, 2026 - 01:18 PM
The Fisher CZ-21 uses advanced Dual Frequency Fourier Domain Signal Analysis, which simultaneously processes signals at multiple frequencies to provide superior target identification and depth detection. This technology allows the detector to better distinguish between different types of metals and reduce false signals from mineralized ground or saltwater conditions. The dual frequency system is particularly effective for advanced detecting in challenging environments where single-frequency detectors might struggle.
