The Catalogue
Pulse-Induction Detectors
A pulse-induction metal detector is the tool of choice when the ground itself is fighting you. Where VLF machines stall in hot, highly mineralised soils and on wet salt sand, PI technology fires powerful pulses that effectively ignore ground minerals — so the signal you hear is the target, not the dirt. That is exactly why prospectors across West, Central and North Africa reach for pulse induction to chase deep gold, large nuggets, relics and sizeable caches in conditions that defeat ordinary detectors.
AO Gold Detectors stocks the machines that define the category. From Minelab, the GPX 4500, GPX 5000 and the latest lightweight GPX 6000, plus the foldable, fully submersible SDC 2300 for the smallest sub-gram gold. From Garrett, the rugged, waterproof ATX, the ultra-light Axiom, and the Sea Hunter Mark II that dives to 65 m and shrugs off saltwater. For deep relic and cache hunting, the German-built Lorenz DeepMax Z1 and Z2 add 2D/3D target imaging and GPS logging.
The trade-off is honest: PI gives you depth and ground immunity but less discrimination than VLF, so you dig more trash to recover the deep target. As an authorised dealer, we carry genuine stock with full manufacturer warranty, and our team advises in Arabic, French and English on WhatsApp to match the right PI detector to your ground.
9 products · Garrett · Lorenz · Minelab
USA
Germany
Australia
How to choose
- Match PI to your ground: choose pulse induction when soils are hot and highly mineralised, on wet salt sand, or near ironstone where VLF detectors fall silent or chatter.
- Accept the discrimination trade-off: PI prioritises depth and ground immunity over target ID, so expect to dig more trash — a pinpointer speeds recovery of the deep signal.
- Gold prospecting on land: the Minelab GPX 4500, GPX 5000 and lightweight GPX 6000 chase deep nuggets, while the foldable SDC 2300 and Garrett Axiom excel on tiny sub-gram gold.
- Water and beach work: the Garrett ATX (submersible to 3 m) and Sea Hunter Mark II (to 65 m) ignore saltwater for surf, beach and dive hunting where VLF struggles.
- Deep relics, caches and imaging: the Lorenz DeepMax Z1 and Z2 reach large, deep targets and add 2D/3D imaging plus GPS to map finds before you dig.
- Buy genuine, warranty-backed: every unit ships through official channels with full manufacturer warranty — message us on WhatsApp for honest, ground-specific advice in your language.
Frequently asked questions
What is a pulse-induction (PI) metal detector?
A pulse-induction metal detector sends short, powerful bursts of current into the ground and measures the decaying signal that targets return between pulses. Because it samples after the pulse, it largely ignores ground mineralisation, giving exceptional depth in difficult soil and saltwater where single-frequency VLF detectors struggle.
Why choose pulse induction over a VLF detector?
Choose PI when ground minerals are your main obstacle — hot red soils, ironstone, black sand or wet salt beaches. PI sees through that interference to reach deeper, larger gold and relics. The trade-off is discrimination: PI cannot separate trash from treasure as finely as VLF, so you dig more signals. For mild ground and small coin-and-jewellery work, a VLF detector is often the better fit.
Which pulse-induction detectors does AO carry?
AO Gold Detectors stocks the Minelab GPX 4500, GPX 5000, GPX 6000 and SDC 2300; the Garrett ATX, Axiom and Sea Hunter Mark II; and the German Lorenz DeepMax Z1 and Z2 locators. Each suits a different job — from tiny sub-gram gold to deep caches and underwater relics — and all are genuine, warranty-backed units.
Are pulse-induction detectors good for saltwater and beaches?
Yes — PI is ideal for wet salt sand and surf, where the conductive salt overwhelms many VLF detectors. The Garrett Sea Hunter Mark II is fully submersible to 65 m for diving, and the Garrett ATX is waterproof to 3 m, making both strong choices for beach and underwater hunting on saltwater coasts.
Do pulse-induction detectors come with a warranty, and how do I order?
Yes. As an authorised dealer, AO supplies only genuine stock backed by full manufacturer warranty — for example, three years on the Minelab GPX range and Garrett Axiom, and up to five years on the Lorenz DeepMax. To order or get a recommendation matched to your ground, message us on WhatsApp; we advise in Arabic, French and English and ship across West, Central and North Africa.