Product details

FREE ACCESSORIES: (included with purchase)
- Garrett ClearSound Easy Stow Headphones with volume control
- ACE Environmental Cover-Up
- Searchcoil cover

Adjustable Frequency
Eliminate or minimize interference caused by electrical sources or from other metal detectors (such as at crowded club hunts, rallies).
ACE 400™ Iron Audio
Hear the iron trash before you dig it!
Iron Audio allows you to hear discriminated iron (normally silenced) to avoid digging undesired flat iron targets such as bottle caps or washers.
NOTE: To use the Iron Audio feature, some degree of Iron Discrimination must be set. In this demonstration, the Iron Discrim setting is at 35. Without Iron Audio, both the bottle cap and silver coin sound like good targets. With the Iron Audio, the bottle cap response includes iron “grunts” to indicate this might be a trash target.
CLICK ABOVE FOR IRON AUDIO™ DEMONSTRATION!
ACE 400™ Additional Features

Digital Target ID
Numeric identification scale from 0 to 99. Identifies a target metal’s conductivity.

Electronic Pinpointing
This non-motion All-Metal Mode function is used to precisely locate a detected target’s position.

Iron Check
Increased resolution (more pixels) allows more precise control of how much iron discrimination to apply. Very useful in areas where desired treasure targets are being masked by iron trash.

Graphic Target Analyzing™
Simultaneously shows a treasure target’s conductivity and the detector’s discrimination pattern.

Garrett detectors, pinpointers, and searchcoils now come with a 3 Year Warranty.
« This Machine Is a Silver Finder! »
Michael Bennett, Nugget Noggin on YouTube Field tester for Garrett ACE 400
Michael’s silver finds from his first week with the ACE 400
ACE 400™ Films
Official Garrett training videos, plus From the Field adventures showing the ACE 400™ in use.
ACE 400 Instructional Video Part 1
ACE 400 Instructional Video Part 2
ACE 400 Instructional Video Part 3
Find More Coins! Garrett ACE Detecting Tips

Comparaison chart
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Presentation | The top of the range in the ACE family, the 400 features a new Iron Audio function, a powerful DD drive, higher frequency and a headset with volume control. | A detection maestro at a great price. The ACE 300 has more modes than an ACE 200 and enhanced features to help find more treasure. | Lightweight, powerful, easy to learn entry level detector. Simple one-touch operation; turn it on and start hunting! | A worldwide best seller, the Garrett ACE 250 is ideal for finding coins, jewelry, and relics for users of all ages and experience levels. |
Iron Audio | ✔ | No | No | NO |
Iron discrimination segments | 4 | 4 | 1 | 2 |
Distinction by beach | Adjustable | Adjustable | Fixed | Adjustable |
Search modes | 5 (plus localization) | 5 (plus localization) | 3 | 5 (Plus Pinpoint) |
Sensitivity/Depth Settings | 8 | 8 | 4 | 8 |
Numeric Target ID | ✔ | ✔ | ✔ | NO |
Location | ✔ | ✔ | No | ✔ |
Frequency | 10 kHz, adjustable | 8 kHz, adjustable | 6.5 kHz, fixed | 6.5 kHz |
Tone Identification Sound Levels | 3 | 3 | 3 | 3 |
Target depth indicator | ✔ | ✔ | ✔ | ✔ |
Standard detection disc | 22 x 28 cm (8.5 x 11 in) PROformance ™ DD | PROformance ™ DD Concentric 18 x 25 cm (7 x 10 in) | PROformance ™ DD Concentric 17 x 23 cm (6.5 x 9 in) | 6.5" x 9" concentric PROformance |
Length (adjustable) | 40" to 53" (1.016m - 1.35m) | 40" to 53" (1.016m - 1.35m) | 40" to 53" (1.016m - 1.35m) | 42” to 51” (1.06m - 1.29m) |
Food | 4 AA batteries (included) | 4 AA batteries (included) | 4 AA batteries (included) | 4 AA (included) |
Battery status indicator | ✔ | ✔ | ✔ | ✔ |
Guarantee | 3 year, limited, parts and labor | 3 year, limited, parts and labor | 3 year, limited, parts and labor | 3 Year, Limited Parts/Labor |
One-touch treasure hunt | ✔ | ✔ | ✔ | ✔ |
Clamps for a more stable rod | ✔ | ✔ | ✔ | NO |
Helmet included | ✔ | ✔ | No | NO |
What else is in the box? | Easy Stow Helmet, ACE Cover, Disc Guard, Manual | Easy Stow Helmet, ACE Cover, Disc Guard, Manual | Instruction manual | Owner's manual |
Total weight | 1.32 kg (2.9 lb) | 1.27 kg (2.8 lb) | 2.75 kg (1.25 lb) | 2.7 lbs. (1.2 kgs.) |