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Fisher CZ-21

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Steve Herschbach
  • Price: $1099 Freq: Multi Weight: 5.3 lbs Waterproof?: Yes Current?: Yes

The Fisher CZ-21 metal detector was introduced in 2009 and is still in production. The CZ-21 replaces the earlier CZ-20 model and is essentially the same unit with slight modifications. The Fisher CZ-21 is a fully submersible multifrequency VLF metal detector aimed primarily at underwater use. The 250 foot maximum depth makes the CZ-21 suitable for use while SCUBA diving. Note that as a diving detector both the headphones and coil are hardwired into the control box and cannot be changed. There is a choice of 8" or 10.5" concentric coils at the time of purchase.

"The CZ-21 and 1280X are housed in the most rugged enclosures and each have the same collapsible pole assemblies. A short pole assembly is desired when diving, but full extension is preferred when standing or wading. Both are submersible to 250 feet. The control housing can be easily removed for hip-mounting 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, while the 1280X is known for being the best fresh water detector, but both can be used in either environment. 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!" Source: Fisher 2016 catalog

Fisher CZ-21 metal detector

Fisher CZ-21 control panel

  • Dual Frequency Fourier Domain Signal Analysis
  • 5 kHz and 15 kHz Operating Frequencies
  • One touch Pinpoint (V.C.O. non-motion)
  • Manual Ground Balance
  • All Metal Auto-Tune Mode
  • 2 Year Warranty
  • Discrimination Mode with 3-tone Audio Target-ID
  • Large Target Alert Audio, Faint Target Audio Boost
  • Adjustable Sensitivity, Discrimination and Volume
  • Battery Test Mode
  • Fully Collapsible Pole Assembly
  • Submersible to 250 feet (76 m)
  • Removable control housing
  • Uses four 9V Alkaline batteries
  • Available with 8" (20 cm) or 10" (25 cm) Concentric Round Open Searchcoil 
  • Weight: 5.3 lbs. (2.4 kg) w/8" (20 cm) Searchcoil, 5.9 lbs. ( 2.7 kg) w/10" (25 cm) Searchcoil

Official Fisher CZ-21 Product Page

Fisher CZ-21 Owner's Manual

First Texas (Fisher) Metal Detector Forum


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