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Detector specifications
Best for
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- Coin & Relic — shop all
- Gold — not suited to this detector
- Beach & Water — not suited to this detector
- Kids — not suited to this detector
- Beginner / Intermediate — not suited to this detector
- Advanced / Expert — shop all
The Nokta Jeohunter 3D Dual System is a deep-seeking detector and underground imaging system in one: it finds large metal targets at depths a coin machine cannot reach, and it also locates voids such as cellars, tunnels and caves. This open box unit is a customer return that our team has powered up, ground balanced and run with all three coils before relisting, and it carries the full 2-year Nokta warranty. One unit available at this price.
What's Included with the Open Box Jeohunter 3D Dual System
- Jeohunter 3D system box with graphical display
- T21 DD search coil, 21 x 31.5 cm (8.3 x 12.4 in), with shaft and LED system
- T44 DD search coil, 44 x 36 cm (17.3 x 14.2 in), with shaft
- T100 DD search coil, 100 x 60 cm (39.4 x 23.6 in), with carrying bag
- Lithium polymer battery, AC charger and car charger
- Headphones
- Leather carrying bag for the system box and Jeohunter carrying bag
- User manual and warranty certificate
Open Box Condition
This unit was returned by a customer and shows light handling wear on the cases and packaging; the electronics and coils are in full working order. We tested every coil, the display, the charger and the battery before listing it. Coverage is the same 2-year Nokta limited warranty as a new system. Other returns and demo units are listed in our open box and demo collection.
Three Coils, Three Jobs
T100: Deep Search Over Open Ground
The 100 x 60 cm T100 coil ignores coin-sized trash and reaches the depths where caches, cannon and buried structures sit. Two people carry it across a field or a suspected cache site, and the CSTN display draws a 3D graph of the target's shape and depth as you pass over it. Discrimination reads non-ferrous, ferrous, gold, steel and cavity.
T44: General Purpose and Confirmation
The 44 x 36 cm T44 is the coil you use most: deep enough for large targets, precise enough to narrow a T100 signal to a diggable spot. It shares the T44/T100 discrimination set and 3D display, and it runs about 4 hours on the lithium polymer battery.
T21: Tight Spaces and Smaller Targets
The 21 x 31.5 cm T21 coil with LED indicators works inside cellars, along walls and in brush where the large coils will not fit, and it picks up smaller relics and coin spills the deep coils are designed to ignore. It runs about 8 hours per charge and discriminates non-ferrous, ferrous and steel, plus cavity.
Cavity Detection: Finding What Isn't Metal
The Jeohunter's cavity mode responds to the change in ground signal over a void, so a collapsed root cellar, a filled well or a natural cave shows on the display where a conventional detector reads nothing. For old homestead sites and historic properties, this is how you find the spaces that hold artifacts rather than the artifacts one at a time. It is one of the few systems in our 3D imaging metal detectors collection with both metal and cavity analysis.
Why Serious Hunters Choose the Jeohunter 3D
- 3D real-time target imaging shows shape, depth and metal class before you dig.
- Three interchangeable DD coils cover everything from a cellar corner to a two-person field sweep.
- Cavity detection locates cellars, tunnels and caves that other detectors cannot see.
- Four-way discrimination (non-ferrous, ferrous, gold, steel) plus cavity on the T44 and T100.
- Depth reading in centimeters for both metal targets and voids.
- Ground mineralization handling for the clay and ironstone common on old sites.
Specifications
- Operating Frequency: 12 to 13 kHz
- Search Coils: T21 21 x 31.5 cm DD (2.4 kg), T44 44 x 36 cm DD (2.6 kg), T100 100 x 60 cm DD (8.45 kg)
- Display: CSTN graphical display with 3D target imaging (T44 and T100); LED indicators on T21
- Discrimination: Non-ferrous / ferrous / gold / steel + cavity (T44, T100); non-ferrous / ferrous / steel + cavity (T21)
- Depth Indication: Yes, in centimeters
- Battery: Lithium polymer, rechargeable; AC and car chargers included
- Battery Life: About 8 hours with T21, about 4 hours with T44 or T100
- Water Resistance: Water resistant (not submersible)
- Skill Level: Advanced / expert
- Warranty: 2 years limited manufacturer
Why Buy from Serious Detecting
We are an authorized Nokta dealer, so this open box Jeohunter carries the full 2-year Nokta warranty and access to Nokta's US support. Our team has run the Jeohunter on cache and homestead sites and can talk you through coil choice and reading the 3D display. Free shipping on all orders, 30-day returns, and price-match guarantee. If you would rather have a sealed unit, the new Jeohunter 3D Dual System is on the shelf too, alongside the rest of our Nokta metal detectors.
Customer Questions & Expert Answers
What is the difference between the open box Jeohunter and a new one?
Which Jeohunter coil should I start with?
Can the Jeohunter find coins like a normal detector?
How does Jeohunter cavity detection work?
Is the Jeohunter waterproof?
Customer Reviews & Field Feedback
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