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Garrett ACE 400 Metal Detector

In stock
$82.46 in Free Accessories
with 8.5x11" PROformance DD Search Coil Plus FREE Treasure Hunting Accessories

Garrett ACE 400 Metal Detector
with 8.5x11" PROformance DD Search Coil Plus FREE Treasure Hunting Accessories

Stand head and shoulders above the crowds with the Garrett ACE 400 Metal Detector! Highly recommended for coin hunting, ghost town hunting, jewelry hunting, relic hunting, competition events, and dry beach/freshwater hunting (submersible searchcoil only). The king of ACEs, the ACE 400 includes advanced features like Iron Audio, Digital Target ID, and Frequency Adjust to help you dig more treasure and less trash and twice the iron resolution of the best selling Ace 250 to help separate good targets from the adjacent junk iron.

The Garrett ACE 400 metal detector was built for the user who wants an easily customizable device with all the necessary features. Treasure hunters have used this device to find relics, jewelry, and coins on dry beaches, rocky terrain and freshwater. Its versatility in a wide variety of environments makes it perfect for use in competition events and cache hunting. The Digital Target ID – on a 0 to 99 scale – provides with the user with an educated look at what is below their feet. The numbers on the scale corresponds to a list kept by Garrett that can easily be referenced to determine the metallic content of the target. It is handy for those who want to know what kind of things are out there even before they start digging.

The Iron Discrimination Segment is set to four on the Garrett ACE 400 to allow for the treasure hunters to set the discrimination level based on the ground conditions with the Notch Discrimination being adjustable. Five search modes are built into this device including jewelry, relics, coins, zero discrimination and even a custom setting for advanced users. The Target Depth Indicator is designed to show the depth of the target.

Eight sensitivity settings allow for usage in a variety of areas including those with high ground mineralization, near power transformers or even in close proximity to radio signals. The Audio Tone ID Levels provides three separate tones to let the user know the conductivity of the target they've come across. A Battery Condition Indicator is also on board, and alerts the user when a charge is needed, The Iron Audio on the ACE 400 alerts the mid-tone signal range to include targets above the point of discrimination and lets users hear discriminated iron that would otherwise seem like a good target.

What really makes the ACE 400 metal detector stand out is its versatility in the field.Garrett designed this metal detector to be useful on dry beaches, in fresh water, during competitions, or hiking over rocky soil. It's perfect for picking up coins, jewelry, relics and can even be used for gold prospecting. Built with Garrett’s ingenuity, there’s almost nothing that the ACE 400 cannot find!


  • Total Weight : Weighs in at 2.8 lbs (1.27 kgs)
  • Frequency : Operates at a 10 kHz Frequency
  • Warranty : Includes a 2 Year Limited Warranty
  • Digital Target ID : Displays a Digital Target ID from a Scale of 0 to 99
  • Audio : Audio Emits Sharp and Responsive Audio using Pulse-Width Modulation
  • Discrimination Control : Modifies Discrimination Patterns with Notch Discrimination
  • Iron Audio™ : Iron Audio Lets Users to Hear Iron Targets That Have Been Discriminated Against
  • Continuous Coin Depth Indicator : Allows For the Determination of Target Depth with the Continuous Coin Depth Indicator
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

Additional Information

Manufacturer Garrett

Instruction Manuals

SKU 14-1141260
Product Dimensions 21.50x14.25x5.50
Hot Deal No
Manufacturer SKU 1141260
Product Type Metal Detectors
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
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, Notch Discrimination, Pinpoint, Relics
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) 15 to 20 Hours
Rechargeable System No
Exclusive Features Iron Audio, 0-99 Target I.D. Scale, Higher Frequency, Adjustable Frequency, Pulse-Width Modulation Audio

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
Ace Series Graph
Customer Reviews

Average Rating

4.9 average of 11 reviews

Great Detector

Review by Detecting Smiths on August 26, 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


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 07, 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 14, 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 05, 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.

View all 11 reviews

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