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Garrett AT MAX
Fisher CZ 21

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Garrett AT MAX
Fisher CZ 21
Feature comparison between Garrett AT MAX and Fisher CZ 21
Options Garrett AT MAX Fisher CZ 21
Detector Type VLF Beach Detector VLF Beach Detector
Price $722 $1000
Manufactured in 2017 2009
Battery Type 4 AA Four 9V
Weight (Lbs.) 3.03 6
Operating frequency 13.6 5, 15 kHz.
Display Yes None
Backlight Yes No
Target ID Yes
Tone ID 3 tones 3 Tones
Search Modes
  • 4 Pro Audio modes
  • Autotune All Metal
  • Disc. Silent Search
  • Pinpoint All Metal N/M
Ability to change coils Yes No
Ground balance Auto/Manual Manual
Waterproof 10 feet 250 feet
Warranty 2 years 2 Years
Number of Reviews graph 2
graph 1
graph 5
graph 4
graph 1
Avg. User Rating 3.67 4.40
Avg. Durability Rating 5.00 4.75
Avg. Ease of Use Rating 5.00 4.75
Avg. Depth Rating
Depth value
Depth value

Most helpful review for Garrett AT MAX

At max
Love this machine. First outing with this second dig a gold ring 10in. Second outing gold ring 5in. I use pro-zero, a 8x5x11 in coil. Ground conditions varied from moist to dry. Sensitivity setting high. Light weight. In my opinion this is the best out of the At series, using the others from experience of my own. Good investment for the hobby.
Rob from Ohio

Thumbs up! 8
Read all reviews for Garrett AT MAX

Most helpful review for Fisher CZ 21

CZ-21, an excellent land and water machine
The CZ-21 is an excellent and easy to use metal detector. Once you learn to use it, you will do very well. It is easy to ground balance and it can be rod, chest, or hip mounted with no problems. It is waterproof down to 250 feet and comes with a straight rod mount that can also be used for diving. The detector, when used in the AutoTune (a wide scan all metal mode) setting is very sensitive, and its 3 tone ID makes detecting a pleasure.
If you want gold, dig the mid tones.
If you are hunting for coins, dig the high tones. If you hear a low tone - it is probably iron.

A low/medium means a possible gold target next to iron. The detector will have trouble finding tiny gold necklaces or tiny chain link bracelets unless they have a clasp, but then the other brands of water detectors also have difficulty in finding such targets.

Be sure to swing the detector coil slow in the water and you will have great success. The pinpoint button takes some getting used to, but after a while in the water you will not even bother using it. Overall, the CZ-21 is an excellent and well built detector that can be used on land or in the water. And, it is proficient in both ocean and fresh water as well as on dry or wet sand.
Darryl from Sacramento, CA

Thumbs up! 75
Read all reviews for Fisher CZ 21