Garrett AT Max International

Official specification overview. The Garrett AT Max International is an all-terrain, single-frequency VLF detector supplied with Garrett Z-Lynk wireless MS-3 headphones. It is built for coin, jewellery and relic searching on land and in shallow water.

Who the AT Max International is for

This model suits detectorists who prefer a strong audio-led machine with an all-metal mode, manual or automatic ground balance and a familiar 0–99 Digital Target ID. The International version uses tone and target-range behaviour intended for markets outside the United States, so users should consult the correct manual.

Key specifications

• Operating frequency: 13.6 kHz.
• Target ID: 0–99 digital scale.
• Search modes: True All-Metal, Custom, Coins and Zero discrimination.
• Waterproofing: fully submersible to 3 m / 10 ft; wireless headphones are not submersible.
• Standard coil: 8.5 × 11-inch PROformance DD searchcoil.
• Audio: adjustable threshold, Iron Audio, proportional audio and Z-Lynk wireless headphones.

Strengths

The AT Max combines a rugged waterproof housing with wireless audio and a deep-seeking all-metal mode. Iron Audio can reveal discriminated iron around a high tone, helping users evaluate bottle caps and flat iron before digging. Ground Balance Window can also help on changing mineralised ground.

Points to consider

This is a single-frequency detector rather than a simultaneous multi-frequency platform. Saltwater beaches can require careful ground balancing and reduced sensitivity. The control box can enter water, but the supplied MS-3 headphones must remain dry unless a compatible waterproof audio solution is used.

Buying checklist

• Confirm that the package is the International version.
• Check that the MS-3 headphones, coil cover and warranty are included.
• Inspect local service and parts availability.
• Verify current dealer pricing and do not rely on an old advertised price.

Before comparing readings, read Metal Detector Target ID Explained. You can also ask owners about field settings in our community.

Official source

Garrett AT Max International product page and the manufacturer’s International user manual.

Specification checked September 2026. Packages, software information and prices may change; confirm details with Garrett or an authorised dealer.