Explore beneath the surface with the Tianxun X3 (MD-780) — a rugged, high-sensitivity underwater metal detector built for serious adventurers. Whether you’re beachcombing, diving in shallow rivers, or exploring lakes, the X3 delivers reliable performance and durable construction you can trust.
Key Features
✅ Fully Waterproof Design
Specifically engineered for underwater use, the X3 is ideal for shoreline, shallow water, lakebed, and riverbed treasure hunts.
✅ Clear Audio Alert System
Built-in sound alarm offers loud, clear audio feedback when a metal object is detected — perfect for noisy environments or underwater searches.
✅ Extended Battery Life
Powered by 8 × 1.5V AA batteries (not included), providing long-lasting operation for all-day detecting adventures.
✅ High Visibility Yellow Finish
Bright yellow color ensures easy spotting both underwater and on land — no more losing your equipment in surf or sand.
✅ Durable, Professional Construction
Built from robust, abrasion-resistant materials and backed by CE, RoHS, and FCC certifications for quality you can rely on in demanding conditions.
Technical Specifications
| Attribute | Details |
|---|---|
| Product Name | Tianxun X3 Metal Detector (MD-780) |
| Type | Underwater Metal Detector |
| Brand | Tianxun |
| Color | Yellow |
| Power Supply | 8 × 1.5V AA batteries (not included) |
| Alarm Type | Audio (Sound Alert) |
| Weight | 2.5 kg |
| Certifications | CE, RoHS, FCC |
| OEM Support | Available |
| Origin | Shanghai, China |
| Warranty | 12 Months |
Packaging & Delivery
- Selling Unit: 1 × Tianxun X3 Metal Detector
- Package Size: 58 × 32 × 15 cm
- Gross Weight: 3.5 kg
- Carton Packaging: 24 units per strong export carton
(Note: Batteries not included due to shipping regulations.)
Perfect For
✅ Underwater gold, coin, and relic hunting
✅ Beachcombing and shallow water exploration
✅ Treasure hunters, hobbyists, and diving enthusiasts
Liam Wright –
The Tianxun X3 (MD 780) exceeded my expectations. The waterproof design is perfect for my beachcombing adventures. The audio alert system works flawlessly, giving me clear signals underwater. Delivery was lightning fast, and the packaging was secure. I’d give it 4 out of 5 stars a solid purchase.
Ross Johnson –
hey guys, just gotta say this metal detector rocks. used it at the beach last weekend and found loads of cool stuff. the sound alert is really clear, so you don’t miss anything. worth every penny if you ask me, 5 stars.
Ross Johnson –
hey guys, just gotta say this metal detector rocks. used it at the beach last weekend and found loads of cool stuff. the sound alert is really clear, so you don’t miss anything. worth every penny if you ask me, 5 stars.
Tom J. –
this metal detector is truly worth the investment. amazing quality and super durable. just used it diving and found treasures galore. the delivery was spot on, quick as a flash. the packaging was top notch, not a scratch on it. i’d recommend this to any bloke who loves underwater adventures. ticked all the boxes for me. ⭐⭐⭐⭐⭐
Jamie O’Donnell –
The Tianxun X3 (MD 780) is a top notch underwater metal detector. I’ve found some awesome treasures at the beach with it. The waterproof design and clear audio alerts make it easy to locate objects underwater. Definitely a worthwhile investment for any treasure hunter.
David Thompson (verified owner) –
The Tianxun X3 Waterproof Underwater Diving Gold Metal Detector MD 780 is a game changer for my treasure hunting adventures. Its accuracy in detecting gold under the sea is impressive. The lightweight design makes it easy to carry around, and the waterproof feature is a big plus. Overall, a solid purchase for any underwater explorer.