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Garrett AT Max
Garrett AT Max

Garrett AT Max

Price: $1000

Garrett AT Max Waterproof Metal Detector with 8.5 x 11" + Detech 13" Ultimate DD Search Coils for Garrett AT Series + Garrett Pro-Pointer AT Waterproof Z-Lynk

Made In United States
Manufactorer Garrett
Search VLF
Depth 1.80
Guarantee 2 years


Garrett AT Max Metal Detector - Experience Powerful, wireless all terrain performance.

Built for the professional treasure hunter. Extreme depth and performance in all terrains with the Garrett AT Max,

the perfect metal detector for land and underwater detection.

This Garrett brand model is designed to meet all of your treasure hunting needs.

 Be sure to read our Guide Comparing the Garrett AT Pro, AT Gold and AT Max metal detectors.


This Bundle Ships Complete with Two Search Coils: In addition to the Standard Garrett 8.5 x 11" DD search coil and cover,

this bundle ships complete with the Detech 13" Ultimate Search Coil

This coil will work with the AT Max as well as the AT Pro and AT Gold.

This coil will give you the best depth and most accurate pinpointing.

Compared to traditional DD coils, the patented Ultimate coil technology provides you with more stable operation,

better ground balancing and the most accurate target identification.

This Detech Ultimate search coil is waterproof and coil cover is included.


Feedback From Real AT Max Field Testers 

Garrett opted to take extra time to field test this unit at locations around the world this summer. Feedback from these individuals has been very positive, as evidenced by some of the following quotes:

  • "Deep, with great sensitivity, signal reliability, robust, and easy to use."

  • "During the field tests, we observed a considerable increase in the detection capacity in a highly mineralized soil."

  • "The Z-Lynk wireless headphones are just totally awesome . . . There are so many great features on the new AT Max."

  • New grip: "Good move as far as mud and cleaning goes."

  • "Like the volume control addition on the control box."

  • "Very intuitive and easy to use."

  • "Loved having the backlight! An absolute positive feature."

  • "Both auto and manual ground balance perform well. Tested on wet salt sand, alkaline soils, and sandy soils."




MAX features equal MAX performance

  • Built-in Z-Lynk™ Wireless Technology - Cut the cord! Integrated circuitry transmits audio to your wireless headphones. Six times faster than Bluetooth speed! Auto pairing. No cables, and no interference from other wireless devices.

  • New Garrett MS-3™ Z-Lynk Wireless Headphones included The speed of Z-Lynk Wireless Technology, and high-fidelity audio . . . with no cords attached!

  • Maximum Detection Depth Increased transmit power and enhanced electronics provides AT Max with significant depth increase.

  • True All Metal Mode Detects all types of metal and provides the greatest possible detection depth and sensitivity.

  • Backlight: Illuminates LCD screen for improved visibility in low-light situations.

  • Optimized Frequency The AT Max’s 13.6 kHz operating frequency provides excellent detection on a wide range of targets—including silver coins, gold jewelry, and brass relics.

  • High Resolution Ground Balance Automatic and manually adjustable for improved performance. Includes 175 points of Ground Balance resolution, allowing the AT Max to handle both conductive soils (such as saltwater beaches) and highly mineralized ground.

  • Automatic Ground Balance Window™ Garrett Exclusive feature will simultaneously ground balance to a range of values to help overcome localized ground variations. By reducing subtle ground responses, the Automatic Ground Balance Window smooths detector audio and allows the user to hear faint targets.

  • Larger Display Numbers: Digital Target ID number, Iron Discrim number, etc.

  • More Controls—All easily accessible with a single finger as you search.


Garrett AT MAX’s other features include:


  • Iron Audio™ Hear discriminated iron (normally silenced) to avoid digging tricky, undesired flat iron items.

  • All Metal Iron Audio™ Garrett Exclusive feature that audibly identifies discriminated iron while operating in a True All-Metal Mode.

  • Adjustable Frequency Small frequency shifts to eliminate interference.

  • All Terrain Versatility Fully submersible to 10-foot (3 meter) depth. Weatherproof design also protects against dusty and humid environments. For underwater use, optional wired headphones must be used such as the Garrett Submersible Waterproof Headphones.

  • Digital Target ID—0 to 99 scale.

  • High-Res Iron Discrimination™ 44 points of iron resolution.

  • Adjustable Threshold User can manually adjust the audio threshold (the constant background sound or “hum”) to better hear faint targets.

  • Pulse Width Modulation Audio Proportional PWM audio response and Tone Roll Audio provide more target information and sharp, responsive target signals.

  • Four Search Modes: True All-Metal, Custom, Coins, and Zero Discrim Modes.

  • Fast Recovery Speed

  • Notch Discrimination

  • Coin Depth Indicator

  • Battery Condition Indicator

  • All Garrett AT searchcoils are compatible: 4.5” SuperSniper, 5” x 8” DD coil, 6.5” x 9” concentric coil, 8.5” x 11” DD coil, and 9” x 12” concentric coil.

  • Garrett AT Max: All-Terrain performance, with built-in Z-Lynk Wireless

Garrett AT Max Metal Detector Specifications:

  • Z-Lynk™ Wireless (integrated)

  • MS-3 Wireless Headphones are Included

  • Enhanced Detection Depth

  • True All-Metal Mode

  • Backlight

  • Frequency 13.6 kHz, adjustable

  • Ground Balance, Auto/Manual High Resolution, 175 pts

  • Auto Ground Balance Window™

  • Iron Audio™ (Disc. Modes)

  • All Metal Iron Audio™

  • Iron Discrimination Segments: 44

  • Threshold Adjustment

  • Electronic Pinpointing

  • Waterproof to 10 feet (3 meters)

  • Freshwater and Saltwater use

  • Search Modes: 4 (all Pro Audio)

  • Digital Target ID: Large Size

  • Audio Tone ID: 3 Levels

  • Notch Discrimination: Adjustable

  • Sensitivity / Depth Adjustments: 8

  • Fast Recovery Speed

  • Target Depth Indicator

  • Standard Searchcoil: 8.5” x 11” DD PROformance

  • Length (Adjustable): 43" to 56" (1.09m - 1.4m)

  • Total Weight: 3.03 lbs (1.4 kgs)

  • Batteries: 4 AA

  • Battery Condition Indicator


Approximate Weight

3 Pounds

Audio Identification


Battery Requirements

4 - AA

Battery Indicator



Garrett Hobby

Built-In Flashlight


Search Coil Size

2 Coils: 8.5 x 11" + 13" Ultimate Coil


United States

Ground Balance

Manual Ground Balance

Headphone Jack Size

Garrett 2-Pin

Holster Included


Includes Bonus Items




Operating Mode

All Metal and Discriminate

Operating Frequency

13 kHz

Circuitry Type


Pinpoint Mode


Search Coil Shape

Semi Elliptical

Search Coil Type

Double D

Sensitivity Adjustment


Vibrating Alert


Visual Identification

Graphic Target Identification


2 Years

Water Resistance

Waterproof Detector




  • Two-year warranty

  • Powerful, large 8.5" x 11" PROformance Double-D search coil

  • Garrett AT Max cap

  • Garrett 8.5” x 11” DD coil cover

  • Z-Lynk MS-3 Wireless headphones included

  • Garrett Pro-Pointer AT Waterproof Z-Lynk Wireless Pinpointer
  • Comprehensive user's manual

  • Support cuff with Strap

  • New Hand Grip! More robust, non-absorbant, textured rubber

  • 4 AA batteries, batteries are included

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