Garrett · Single frequency detector

Garrett AT Max

The AT Max runs one frequency, 13.6 kHz, with the detector submersible to 10 ft (3 m). Garrett sells it with CS-3 Z-Lynk wireless headphones; the Amazon listing we link names no headphones in its title.

Specs read Oct. 16, 2026 on garrett.comListed on Amazon as the detector alone

13.6 kHzOne frequency

10 ftWaterproof

Not publishedWeight

AT Max tech specsFacts from Garrett's product page, rewritten. A value Garrett does not publish is marked.
Technology	Single frequency
Frequencies	13.6 kHz
Waterproofing	detector submersible to 10 ft (3 m)
Weight	Not published
Coil	Not published
Battery	4 x AA (included)
Battery life	Not published
Search modes	True All Metal, 3 discrimination modes
Sensitivity	8 levels
Target ID	0 to 99
Display	Backlit display
Headphones	CS-3 Z-Lynk wireless headphones
Warranty	3 years
Status	In the current range

Source: Garrett, AT Max product page (opens in a new tab), read Oct. 16, 2026.

Not publishedWeight: Not on the product page.
Not publishedCoil: Size not stated on the product page.
Not publishedBattery life: Garrett lists the AA cells, not how long they last.

How it differs from its neighbors

Its closest sibling, the AT Pro, goes just as deep, 10 ft, but ships with a corded set, MS-2 wired headphones. On paper the AT Pro sorts iron in 40 levels of iron discrimination, on an 8.5 x 11-inch DD coil. No frequency is listed for it.

The gold-oriented AT Gold is described only as "high frequency". It uses a smaller 5 x 8-inch DD coil and is rated 10 feet in fresh water.

To go deeper in the water, the Vortex VX5 is rated submersible to 16 ft (5 m). Garrett lists its frequency settings as 13 kHz, Multi-Freq., two choices, with Z-Lynk wireless built in.

AT Max and AT Pro compared
Spec	DetectorAT Max	DetectorAT Pro
Frequencies	13.6 kHz	Not published
Waterproofing	10 ftDetector, 3 m	10 ftDetector, 3 m
Weight	Not published	Not published
Battery	4 x AA (included)	4 x AA (included)
Target ID	0 to 99	0 to 99; 40 levels of iron discrimination
Display	Backlit display	LCD, not backlit
	View on Amazon AT Max (opens in a new tab)Affiliate link	View on Amazon AT Pro (opens in a new tab)Affiliate link

Facts from Garrett's page for each model, read Oct. 16, 2026.

Other Garrett models to compare

Three facts per model on one scale; open a card for its full spec sheet.

ATSingle frequency

AT Pro

Not publishedFrequency

10 ftDetector

Not publishedWeight

Coil: PROformance, 8.5 x 11-inch DD

View on Amazon AT Pro (opens in a new tab)Affiliate link

ATSingle frequency

AT Gold

Not publishedFrequency

10 ftDetector

Not publishedWeight

Coil: PROformance, 5 x 8-inch DD

View on Amazon AT Gold (opens in a new tab)Affiliate link

VortexMulti-frequency

Vortex VX5

13 kHzFrequency

16 ftDetector

3 lbWeight

Coil: 11-inch DD

View on Amazon Vortex VX5 (opens in a new tab)Affiliate link

Questions about the AT Max

Answered from Garrett's product page, read Oct. 16, 2026.

The detector is, down to 10 ft (3 m). No rating is given for the CS-3 headphones, so keep them dry.

One frequency, 13.6 kHz. For the AT Pro, the product page gives no frequency.

Their water ratings match, 10 ft each. Garrett publishes the AT Max's 13.6 kHz and sells it with CS-3 Z-Lynk wireless headphones. The AT Pro comes with MS-2 wired headphones.