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ACE 400i

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Calculated at checkout


Garrett ACE™ 400i Metal Detector

Dig more treasure and less trash with the ACE 400i ! The ACE 400i includes advanced features like Iron Audio, Digital Target ID, and Frequency Adjust.

Highly Recommended For:

Coin Hunting, Jewelry Hunting, Relic Hunting, Competition Events, Dry Beach/Fresh Water Hunting

Recommended For:

Cache Hunting, Prospecting, Ghost Town Hunting

Key Features

  • New Iron Audio: allows user to hear discriminated iron targets and to alter the mid-tone signal range
  • New Digital Target ID: 0 to 99 scale offers target information
  • New Higher frequency (10 kHz) provides better sensitivity on low and medium-conductivity targets (i.e. gold, lead)
  • New Adjustable Frequency to help eliminate interference
  • New Camlocks for better stem stability
  • New Includes Pulse-Width Modulation audio: sharper, more responsive audio
  • 22 x 28cm (8.5" x 11") PROformance™ submersible DD searchcoil offers excellent coverage, depth
  • Enhanced Iron Resolution: 3x the iron resolution of an ACE 250, to help separate good targets from adjacent junk iron
  • Includes Electronic Pinpointing: precisely locates targets and speeds recovery
  • Notch Discrimination: Modify discrimination patterns based on what you are seeking
  • Five Search Modes (plus Pinpoint)
  • Eight (8) Sensitivity/Depth adjustments
  • Coin Depth Indicator determines target depth
  • Includes revised Target ID legend and Mode/Discrimination patterns to better suit the search needs of international users


Digital Target ID YES, 0-99 scale
Adjustable Frequency YES
Camlocks Included YES
Target ID Cursor Segments 12
Iron Discrimination Segments 6
Notch Discrimination YES
Search Modes 5 (plus Pinpoint)
Sensitivity/Depth Adjustments 8
Electronic Pinpointing YES
Frequency 10 kHz
Audio Tone ID Levels 3
Standard Searchcoil 22 x 28cm (8.5" x 11") DD PROformance™
Length (Adjustable) 1.06m - 1.29m (42" to 51")
Total Weight 1.32 kgs (2.9 lbs.)
Batteries 4 AA (included)
Warranty 2 Year, Limited Parts/Labor


Whats in the Box:

  • 22 x 28cm (8.5" x 11") DD PROformance™ submersible searchcoil

And 3 FREE Accessories*

  • Volume control Garrett ClearSound Easy Stow Headphones
  • ACE Environmental Coverup
  • 22 x 28cm (8.5" x 11") Searchcoil Cover

* Accessory items are subject to availability and change.


pdf-logo.gif Garrett ACE 400i/300i/200i Brochure PDF

pdf-logo.gif Garrett ACE 400i User Manual PDF

Product Videos

ACE 400i Instructional Video (20:08)
This video introduces Garrett’s ACE 400i, followed by instructions on: Detector Assembly, Basic Controls, Target Information, Tone ID and Iron Audio, Selecting Modes, Notch Discrimination, Frequency Adjustment and Sensitivity, Pinpointing, Bench Testing, Search Tips, Battery Replacement and Care, Accessories ▼▼▼ SCROLL DOWN THE DESCRIPTION TO GET INFORMATIONS ▼▼▼ ֎ WHERE TO BUY GARRETT GARRETT METAL DETECTORS, SEARCHCOILS AND ACCESSORIES ֎ → ︎ http://bit.ly/2VD5bvp ֎ WHERE TO BUY ALL GARRETT PRODUCTS IN EUROPE ?
  • ACE 400i Instructional Video
    This video introduces Garrett’s ACE 400i, followed by instruct...

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Product Reviews

  1. I'm hooked! 5 Star Review

    Posted by on 19th Jan 2018

    I’m very happy with my new ACE 400i. Well built, very sensitive and a lot of useful features. Being new to metal detecting I’ve found the headphones marvellous, especially when other people are around. So far I’ve found 8 coins, a long dead pocket watch, a bullet, old buttons and an engine serial plate off a Ford Anglia 105e that was built in Lower Hutt. Recommend spending time to learn the discrimination features, as that does save digging rubbish. It’s a great way to get kids off devices and into the outdoors. Heading out this arvo for another session, can’t wait!

  2. ACE 400i 5 Star Review

    Posted by on 10th Jan 2018

    Awesome detector, in 30 minutes found a 10ltr bucket of nails, bolts,sharp steel and other metal objects, left by the previous owner of the property we recently purchased. Now I don't have to pay vet bills for our horses that could have easy stood on them, lucky I used the ACE 400i before we put them in the paddock.
    Can't wait to more with it.

  3. very good machine for learners 5 Star Review

    Posted by on 18th Oct 2017

    only had it a short time but loving it in 2 weeks I already found 7 coins in my back yard. even my 4yr nephew uses it and he has found 3 coins on his own with it

  4. working just fine thanks 4 Star Review

    Posted by on 8th Aug 2017

    Takes a bit of time to get the hang of...but good beginners tool, I'd say it can just about pick up every thing within its range, only you have to learn to discern just what that 'noise' is so to not waist time-but still fun all the same...

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