Garrett ACE 400 Metal Detector

Includes $37 in FREE Accessories!

In stock 11 currently available

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Product highlights

Total Weight:  2.9 lbs (1.32 kgs)
Frequency: 10 kHz Frequency
Warranty: 2 Year Limited Warranty
Digital Target ID: Scale of 0 to 99
Audio: Three Distinctive Tones Based on Metal Type and Conductivity
Discrimination Control: Modify Discrimination Patterns by Eliminating Individual Notches
Iron Audio™: Hear Iron Targets That Have Been Discriminated Against
Coin Depth Indicator: 2", 4", 6" & 8" Depth Indicators

Best for
Best for Coin icon


Best for Gold icon


Best for Relic icon


Best for Beach icon


Best for Advanced icon


Best for Beginner icon


Included items
this products includes a set of accessories listed below, worth $37.97
Product Description

The ACE 400 metal detector from Garrett is highly recommended for detectorists looking to find coins, jewelry, relics or even competing in treasure hunting events. The ACE 400 metal detector includes a submersible search coil that will even search the edges of a lake, pond or any other watery, swampy area. This metal detector features advanced settings including Digital Target ID and Frequency Adjust to help you dig more treasure and less trash. This detector also features the Iron Audio button to quickly listen in on any iron targets you have eliminated to make sure you don't miss a single treasure.

Selection Modes:

  • Zero Discrimination (All metal)
  • Jewelry Mode
  • Custom Mode (Save your notch selection)
  • Relics Mode
  • Coins Mode
  • Pinpoint Mode (When Pinpoint button is pressed)
  • Manufacturer Garrett
  • Manuals

    Instruction Manuals

  • Quick Look The Garrett ACE 400 Metal Detector is one of Garrett top performing detectors, great for coin, jewelry, relic, and dry beach hunting.
  • SKU 14-1141260
  • Product Dimensions 21.50x14.25x5.50
  • Manufacturer SKU 1141260
  • Product Type Metal Detectors
  • Best for Beginner, Coin, Relic
  • Factory Included Accessories
    • Coil Cover
    • Hardware Set
    • Arm Rest Strap
    • Rain & Dust Cover
    • Instructional Manual
    • ClearSound Easy Stow Headphones
    • 8.5x11" PROformance DD Search Coil
  • Warranty Yes
  • Detector Type All-Purpose
  • Interchangeable Search Coil Yes
  • Technology VLF Single Frequency
  • Arm Rest Fixed
  • Arm Rest Strap Yes
  • Adjustable Shaft Yes
  • Assembled Length Max (in) 51
  • Assembled Length Min (in) 42
  • Apps None
  • GPS No
  • Audio Tones Yes
  • Depth Indication Yes
  • Control Box Mount Standard
  • Frequencies 10 kHz
  • Number of Frequencies 1
  • Programmable Target Id Yes
  • Target Id Segments 12
  • Target Id Yes
  • Discrimination Adjustable
  • Pinpoint Mode Yes
  • Ground Balance Fixed
  • Vibration Mode No
  • Search Modes 6
  • Search Mode Types Coins, Custom, Jewelry, Pinpoint, Relics, Zero Discrim. Modes
  • Search Flashlight No
  • Display Type LCD
  • Backlit Display No
  • Volume Control No
  • Headphone Jack 1/4"
  • Bluetooth Compatible No
  • Interchangeable Headphones Yes
  • Battery Type AA
  • Battery Quantity 4
  • Battery Life (hr) 20 to 40 Hours
  • Waterproof Non-Waterproof
  • Rechargeable System No
  • Exclusive Features Iron Audio, 0-99 Target I.D. Scale, Higher Frequency, Adjustable Frequency, Notch Discrimination
More Information

Garrett ACE 400 Metal Detector

Technical Specifications:

  • Weighs in at 2.8 lbs (1.27 kgs)
  • Operates at 10 kHz Frequency
  • Protected by a 2 Year Limited Warranty
  • Able to Accept or Reject Targets Based on Set Discrimination
  • Modifies Discrimination Patterns using Notch Discrimination


  • Stabilizes Itself Using Camlocks
  • Eliminates Interference using an Adjustable Frequency
  • Includes 3 Search Modes for Jewelry, Coins and All Metal
  • Determines a Target’s Depth using a Coin Depth Indicator
  • Iron Audio Features Allows Discriminated Iron Targets Be Heard
  • Provides Sharp and Responsive Audio with Pulse-Width Modulation
  • Sends a Reminder When Ready to Charge with a Low Battery Indicator
  • Adapts to Treasure Hunting Environment using 4 Sensitivity Adjustments
  • Allows the User to Know What’s Below Their Feet with a 0 to 99 Scale Digital Target ID

Factory Included Accessories:

  • Coil Cover
  • Hardware Set
  • Arm Rest Strap
  • Rain & Dust Cover
  • Instructional Manual
  • ClearSound Easy Stow Headphones
  • 8.5x11" PROformance DD Search Coil

Ace Series Graph

Customer Reviews

Average Experience Rating


4.9 average of 15 reviews


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    • ★★★★★ Great beginner detector

    Review by Ryan F on October 20, 2020

    My brother has this detector and it’s a great machine. It can detect deep into the ground and it is light weight. This is a fantastic beginner detector and is at a great price.
    • ★★★★★ Great detector combo garrett ace 400

    Review by Airbornerob on March 30, 2020

    Love the detector and the combo price from Kellyco Detectors and also the pinpointer. Garrett also has videos that are awesome for the beginner and above. Only con foam handle gets dirty easy
    • ★★★★★ Incredible Product

    Review by Rickey on November 16, 2019

    Garrett is just incredible. Strong detector with many capabilities. If it says Garrett, trust it.
    • ★★★★★ Great machine

    Review by Me on October 16, 2019

    I Just received this machine this afternoon I took out into the backyard to test. It detected a quarter dropper than 8 inches and four pennies oh in different locations in the yard seems to work well!
    • ★★★★★ Great Detector

    Review by Detecting Smiths on August 25, 2019

    I bought this detector for my wife and she loves it. When I asked her if there was anything about the machine that she doesn't like, the only thing she said was that it's too loud to use without the headphones. She likes the volume control on the headphones that come with the detector. She likes the weight and he ease of use. I've used it a few time and the depth this detector gets is surprising. Other than not having a waterproof control head and not having ground balance, there's not a lot of difference between this detector and the AT Pro.
    • ★★★★★ Love my new Garrett!!!!!!

    Review by DENNY on August 21, 2019

    This has got to be the best metal detector in it's class for the money! I also love the pin pointer from Garrett which makes my searching quicker. This detector has a distinct sound which really makes my searching so much easier! Thank you
    Garrett and Kellyco you have made my year! This is my second detector from kellyco and I'm sure it won't be my last time purchasing a detector or any other treasure tool.
    • ★★★★★ Best of the ACE SERIES

    Review by Stumpy on August 20, 2019

    I had the 200 and this 400 is the best of the ACE Series. Pin pointing works great and the Iron Discrim on this makes a world of difference. Better than entry level machines!
    • ★★★★★ Great detector.

    Review by Robert on August 20, 2019

    Great metal detector. found coins at 11 to 12 inches. wouldn't trade it for the world. Robert Howard
    • ★★★★★ Amazing!

    Review by Jeff on August 19, 2019

    Literally, ten minutes out of the box I had found an aluminum name tag and brass buckle in my backyard.
    I had swung my other detector over this same area, many times before and never found anything.
    I am very happy with my purchase. Thank you Kellyco
    • ★★★★★ Great product excellent company

    Review by Eric on February 6, 2019

    Received my sons Ace 400 today and know it will be a great detector because I already use an AT Pro. The best thing though is Kellyco's employee's they are top notch. I placed my order through the website and within 30 minutes got a call from Marty to verify my address as I had entered a different shipping address from my billing address and he wanted to make sure that was correct before mailing out the detector. Wonderful person to deal with. Will buy from Kellyco again for sure.
    • ★★★★★ Great Detector

    Review by William on August 13, 2018

    I've had my Ace 400 for about a year and would not trade it, even if I ever buy another Garrett I would always keep the Ace 400. I've had lots of luck and good finds with the 400. It's not complicated to operate. Coins, jewelry, relics etc. If it's in the ground, and with a little patience, the Ace 400 will find it. Good Hunting everyone:)
    • ★★★★★ Great choice

    Review by Robert on June 19, 2018

    I consider myself a beginner and eventually decided on the ACE 400. I must say it is very easy to operate and I've had a lot of success in finding all sorts of objects. I would recommend that you purchase one with the links that allows for not being tethered to you detectors. Finds objects that are deeper than 8 inches. Very good on batteries.
    • ★★★★★ Garrett ace 400

    Review by Rich on June 15, 2018

    The garrett ace 400 is an excellent metal detector love the iron audio and how you can change the frequency on it this machine finds lots of silver coins it finds gold even the digital target id on the ace 400 is awesome i would recommend this machine to begginers or novice people looking for a great machine to start off with thank you
    • ★★★★★ Outstanding Performance

    Review by Jason on July 26, 2016

    Couldn't be happier with the Ace 400. Outstanding performance.
    • ★★★★★ Ace Rewards 15 Minutes Out of the Box

    Review by Netjunky on April 5, 2016

    Put it together, walked across the street to a front yard I have hit with BH QS, Minelab 40 and Delta 4000. I could swear I picked that place clean but within 10 minutes I had 4 more wheaties and a HUGE smile on my face. Worked great, picked the wheats up at 4-6 inches and shows 82-83 Target ID on them. Its been 30 years since I metal detected and I'm back digging holes. Thank you Kellyco.
Questions and Answers
  • Posted On: 4/18/2021 By: Patricia Raczynski

    Q: Which one,s of your Detectors can one use on land and the beach

    A: Many of them can be used for both, such as the Equinox 600 and 800. We would be happy to help you find the right detector for your needs.
  • Posted On: 3/25/2021 By: Anthony Maida

    Q: hello Does the ace 400 collapse for easy storage like the minelab vanquish? Thanks Anthony

    A: The Ace 400 does break down, but it is not collapsible like the Vanquish.
  • Posted On: 10/15/2020 By: Jerry

    Q: My Ace 400 does not appear to work. How do I get warranty repair. It has never been used.

    A: You would need to contact Garrett directly. You can reach them at 1-800-527-4011.
  • Posted On: 8/30/2020 By: Timoghy

    Q: What is your best package deal on Garrett detectors?


    The best deal for the Ace 400 is ehe Garrett ACE 400 Metal Detector 55-Year Anniversary Special. It includes the Garrett AT Pro pointer! 

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