Review · By Metal Detector Nerd · August 12, 2026
Garrett AT Pro Review
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The Garrett AT Pro is a waterproof 15 kHz all-terrain detector that relic hunters have trusted for over a decade — and it's still one of the best machines for reading marginal, deep signals by ear. Short version: buy it for relic hunting and freshwater, not for salt beaches.
It's an old design now, and it doesn't pretend otherwise. What it does, it still does about as well as anything.
The verdict
A relic hunter's machine that rewards a good ear. Dated on paper, still lethal in the field.
01Specs that actually matter in the field
A higher frequency than most general machines, which biases it toward small targets, jewelry, and relics over deep silver coins. Good for the job it's aimed at; still single frequency, so wet salt sand is a problem.
Gives you the unprocessed target signal instead of a clean beep — you hear the shape of the target, not just its verdict. It's the reason experienced hunters like this machine, and the reason beginners find it noisy.
Fully submersible, control box and all. Freshwater hunting and creek work are genuinely in scope.
You can tune out mineralized soil automatically or dial it in yourself. Manual control matters in the iron-rich ground where relics tend to be.
Light and well balanced for an all-terrain machine — a big improvement over Garrett's Ace line and comfortable for a long day.
02Who it's for (and who it's not)
Buy it if you hunt relics, old homesteads, or freshwater, and you're willing to learn what a marginal signal sounds like. Pro Audio in experienced hands finds deep, ratty targets that a machine with tidier processing rounds off into nothing.
Don't buy it for salt beaches — single frequency plus wet salt equals falsing regardless of the waterproof rating. Get an Equinox 800 for that.
03The honest scorecard
+What's great
- Pro Audio is genuinely excellent for reading deep, marginal targets.
- Fully waterproof to 10 feet, so freshwater and creeks are real options.
- Manual ground balance handles the mineralized soil relic sites tend to have.
- Light, well-balanced, and famously durable — these machines survive years of hard use.
- Huge US support and parts network behind it.
–What's not
- Single frequency, so wet salt sand is off the menu despite the waterproofing.
- No wireless audio built in — waterproof headphones are a separate, and not cheap, purchase.
- Dated interface and screen compared to anything released recently.
- Pro Audio is noisy and unforgiving for a beginner; you'll want to start in standard mode.
04How it stacks up
The classic relic-hunter cross-shop.
Garrett AT Pro vs Minelab Equinox 800Where the AT Pro ranks for relic work.
Best metal detector for coins & relicsThe rest of the Garrett range.
Garrett brand hub
05FAQ
- Is the Garrett AT Pro good for saltwater beaches?
- No. It's waterproof enough for the surf, but as a single-frequency machine it falses badly on wet salt sand. It's built for freshwater and dirt — for salt you want a multi-frequency detector.
- Is the Garrett AT Pro still worth buying?
- For relic hunting and freshwater, yes. The design is old and the interface shows it, but Pro Audio and manual ground balance still make it excellent at reading deep, difficult targets.
- AT Pro or AT Max?
- The AT Max adds wireless audio, a backlight, and more raw sensitivity. If those matter to you, the gap is worth it; if you mostly want Pro Audio and waterproofing, the AT Pro does the core job for less.
Bottom line
The Garrett AT Pro is a specialist that's been quietly excellent for over a decade. For relics, old sites, and freshwater, its audio still teaches you more about what's under the coil than most modern screens do.
Just don't take it to a salt beach, and budget for waterproof headphones if you plan to get it wet.