Garrett AT MAX Metal Detector with Z-Lynk Wireless Technology

The Garrett AT MAX is a 13.6 kHz single-frequency VLF built for detectorists who need wireless audio, deep target response, and full submersion capability in one package. It delivers noticeably more depth on deep silver and brass than entry-level VLFs, true wireless audio through the included MS-3 Z-Lynk headphones with no dongle or latency, and quieter behavior in mineralized soil thanks to a 175-point ground balance. Fully submersible to 10 feet, it runs on four AA batteries and ships with the 8.5 by 11 inch DD PROformance coil already mounted. Hunters stepping up from the Garrett AT Pro gain enhanced transmit power across eight Sensitivity steps, a backlit screen that stays visible at dusk, and 44 iron discrimination segments for cleaner separation in trashy ground.

What's Included with the Garrett AT MAX

• Garrett AT MAX control box with 8.5 by 11 inch DD PROformance submersible search coil
• MS-3 Z-Lynk wireless headphones
• Z-Lynk wireless transmitter (integrated)
• Coil cover
• 4 AA batteries
• Printed owner's manual
• Garrett 3-year limited parts and labor warranty

13.6 kHz Performance in Mineralized Ground and Saltwater

Deep Silver and Copper at Old Farmhouses

Old homesites stack iron, lead, and rusted nails on top of the deepest coins, and a basic VLF gives up at 6 to 7 inches in that ground. The 13.6 kHz frequency on the AT MAX strikes a useful balance between coin sensitivity and tolerance for trash, and Pro Audio gives us proportional volume and pitch shifts that make a faint silver dime feel different from a junk signal at depth. Detectorists looking out for the best metal detectors for coins will find that this platform pulls deep copper and silver out of historic dirt with distinct clarity. We start in Custom Mode so we can keep low-conductor information in the audio while we work iron-heavy zones, dial Iron Discrimination between 25 and 30, and set Sensitivity to 6 or 7 depending on EMI.

Saltwater Beach and Surf

Submersible to 10 feet, the AT MAX handles wet salt sand and shallow surf without false-locking the way a non-saltwater VLF does. We use Zero Mode to keep every signal audible, dial Iron Discrimination low so light gold rings are not silenced, and let the auto ground tracking ride the wet-sand transition. Sensitivity runs at 5 to 6 in saltwater, stepping up to 7 in damp sand where mineralization drops.

Relic Fields and Civil War Sites

True All-Metal Mode is where this detector quietly stretches its lead over the AT Pro: an unfiltered, deepest-possible audio response that surfaces brass buttons, lead, and small iron fragments most discriminators bury. We run a tight, slow sweep, listen for repeatable mid-tones, and let the 0 to 99 Target ID give a second opinion before digging. All-Metal Iron Audio lets us hear discriminated iron while staying in the deepest mode, so we stop chasing flat steel without losing depth.

Z-Lynk Wireless Audio and Backlit Display for Long Field Sessions

• Wireless audio without a dongle: Z-Lynk pairs the detector to the included MS-3 headphones automatically, no cord pulls at our shoulder, no aftermarket adapter, no latency we can hear in the field.
• A backlit screen we can actually read at dusk: the Target ID stays visible during late-evening park hunts and pre-dawn beach walks when other VLF screens go dark.
• Cleaner separation in trashy ground: with 44 iron discrimination segments and All-Metal Iron Audio, our team can hear iron grunts under good targets and skip bottle caps before we cut a plug.
• Quieter behavior in mineralization: the Automated Ground Balance Window and 175-point manual range tame hot dirt and saltwater that would chatter a basic VLF.
• Real depth on deep coins: enhanced transmit power and eight Sensitivity steps let us push the AT MAX harder in clean ground, where we routinely reach targets that whispered or vanished on an AT Pro.

Compare within the family

Detectorists cross-shopping the Garrett AT series - all-terrain waterproof detectors often weigh the AT MAX against the AT Pro and AT Gold. Here's how they stack up on the features that matter most in the field.

Specifications

• Operating Frequency: 13.6 kHz, adjustable
• Search Modes: 4 (Zero, Coins, Custom, True All-Metal), all with Pro Audio
• Target ID: 0 to 99 digital, large backlit display
• Iron Discrimination: 44 segments
• Audio Tone ID: 3 levels with Pro Audio (proportional)
• Sensitivity / Depth Adjustments: 8 levels
• Ground Balance: Auto and manual, 175-point high-resolution range, plus Automated Ground Balance Window
• Waterproof Rating: 10 feet (3 meters)
• Coil: 8.5" x 11" DD PROformance submersible search coil
• Weight: 3.03 lb (1.4 kg)
• Stem: Three-piece S-rod, telescopes from 43 to 56 inches
• Battery: 4 AA alkaline (included)
• Warranty: 3-year limited parts and labor

Why Buy from Serious Detecting

We are an authorized Garrett dealer, which means every AT MAX ships with the full 3-year manufacturer warranty and our team's field-tested support. Our detectorists run the Garrett AT MAX metal detector in mineralized soil and saltwater environments, so we can answer setup questions and coil-choice tradeoffs from real experience. You get free shipping, 30-day returns, and our price-match guarantee. If you're weighing the AT MAX against other advanced - expert level metal detectors or exploring the broader very low frequency (VLF) metal detectors category, our team can walk you through the tradeoffs.