The Catalogue
Underwater Detectors
Wet salt sand and seawater defeat ordinary detectors — the conductivity of the ocean triggers endless false signals just where the gold rings and coins are buried. The machines on this page are built for exactly that. From fully submersible dive units to waterproof all-rounders, every model here is engineered to ignore saltwater and hold a clean, stable signal on the beach, in the surf and underwater.
For true diving and deep wreck work, the Garrett Sea Hunter Mark II uses pulse induction (PI) to automatically cancel saltwater down to 65 m, while the Minelab Excalibur II runs 17-frequency BBS multi-frequency, fully submersible to 60 m. Prefer one detector for both land and water? The Minelab Equinox 900 (Multi-IQ, IP68 to 5 m), the GPS-equipped CTX 3030 and the wireless XP Deus II (waterproof to 20 m) move from dry goldfields to wet sand without missing a beat. Rugged Garrett AT Pro, AT Gold and AT Max units handle rivers, lakes and shallow surf to 3 m.
AO Gold Detectors is an authorised dealer supplying genuine, warranty-backed stock across Sudan, Mali, Niger, Chad, Guinea, Senegal and Côte d'Ivoire. Tell us where you hunt — coast, river or lake — and we'll match the right detector. Enquire on WhatsApp in Arabic, French or English.
13 products · Garrett · Minelab · XP
USA
Australia
How to choose
- Salt vs fresh: for ocean beaches and surf, choose pulse induction (Sea Hunter Mark II) or true multi-frequency (Excalibur II, Equinox, CTX 3030, Deus II) — single-frequency VLF machines chatter badly on wet salt sand.
- Submersible vs rain-proof: check the depth rating. Diving and deep water need a fully submersible unit (Excalibur II 60 m, Sea Hunter 65 m, Deus II 20 m); wading and beach work are fine with 3–5 m all-rounders (AT Pro, Equinox 900, CTX 3030).
- PI vs multi-frequency: PI gives the deepest, quietest signal in salt and ignores mineralisation but discriminates less; multi-frequency keeps target ID and rejects trash on the beach.
- Use waterproof headphones: most surf and dive models include or require sealed underwater headphones — confirm they're in the box before you go.
- Match coil and weight to depth: near-neutral-buoyancy coils (Sea Hunter 8") and light shafts make long sessions in the water far less tiring.
- One detector or two: the CTX 3030, Equinox 900 and Deus II double as land detectors, so coastal hunters often buy one waterproof all-rounder rather than a dedicated dive machine.
Frequently asked questions
Will a normal metal detector work on a saltwater beach?
On dry sand, mostly yes. On wet salt sand and in the surf, single-frequency VLF detectors react to the salt itself and give constant false signals. You want pulse induction (Garrett Sea Hunter Mark II) or true multi-frequency (Minelab Excalibur II, Equinox 900, CTX 3030, XP Deus II), which are designed to ignore saltwater.
What is the difference between waterproof and fully submersible?
"Waterproof" can mean anything from rain-resistant to a deep submersion rating, so always read the depth figure. A detector rated to 3–5 m (Garrett AT Pro, Equinox 900) is fine for wading and beach work; for actual diving you need a fully submersible unit rated for depth — the Excalibur II (60 m) and Sea Hunter Mark II (65 m) are built to go all the way under.
PI or multi-frequency — which is better for wet salt sand?
Both beat single-frequency. Pulse induction (Sea Hunter Mark II) gives the deepest, quietest detection in salt and heavy mineralisation but discriminates less, so you dig more trash. Multi-frequency (Excalibur II, Equinox 900, CTX 3030, Deus II) keeps target ID and lets you reject pull-tabs and foil while still handling salt — better if you want to dig fewer junk targets on the beach.
Can I use one detector for both land and water?
Yes — that's the strength of the waterproof all-rounders. The Minelab Equinox 900 (IP68 to 5 m), CTX 3030 (3 m, with built-in GPS) and XP Deus II (20 m) all switch from dry goldfields and parks to wet sand and surf, so coastal detectorists often buy one machine instead of a separate land and dive setup. Tell us your main ground on WhatsApp and we'll advise.
Are these detectors genuine, and how do I order?
Every unit is genuine, sourced through official Minelab, Garrett and XP channels and covered by the full manufacturer warranty. There's no online checkout: send us a message on WhatsApp with the model and your country — Sudan, Mali, Niger, Chad, Guinea, Senegal, Côte d'Ivoire and beyond — and we'll confirm availability, price and delivery in Arabic, French or English.