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The XP XTREM Hunter is a dual-coil deep-seeking metal detector designed to locate large buried targets at depths standard detectors can't reach, using Fast Multi Frequency (FMF) technology to minimize ground noise while scanning for caches, tanks, pipes, and substantial relics. Built as a premier accessory for the DEUS II wireless ecosystem, the XTREM Hunter pairs with the DEUS II remote control and headphones to deliver a specialized deep-seeking capability that complements the DEUS II's standard coil precision. Construction professionals use it to map underground utilities before excavation, archaeologists rely on it to survey large sites for buried structures, and cache hunters deploy it in fields and farmsteads where targets lie beyond the reach of conventional coin and relic detectors. The XTREM Hunter's ability to limit ground effects in mineralized soil sets it apart from competing two-box detectors that struggle with hot rocks and variable mineralization.
What's Included with the XP XTREM Hunter
- XP XTREM Hunter deep-seeking detector with XTR115TX and XTR115RX FMF dual coils
- DEUS II Remote Control (D2-RC) without case
- WSA II-XL wireless headphones (waterproof IP68 rated)
- XTR-STEM specific S-Telescopic stem
- XTR-CASE115 specific XP hard case (rain and shock proof)
- Accessory kit with USB-C charger
- XTREM Hunter specific user manual
- DEUS II user manual

Fast Multi Frequency Performance for Extreme Depth Detection
Construction Sites & Utility Mapping
The XTREM Hunter's FMF platform transmits multiple frequencies simultaneously, giving construction crews and utility contractors a stable signal when scanning for buried metal pipes, septic tanks, and conduit runs before breaking ground. The 16-foot maximum depth rating covers most residential and light commercial utility depths, and the detector's natural insensitivity to small ferrous debris like nails and wire fragments means fewer false signals when working around old building foundations or demolition sites. The adjustable autotune compensates for EMI noise from nearby power lines and heavy equipment, so the detector remains stable even when operating close to active job sites. Crews working in clay-heavy or mineralized fill soil benefit from the XTREM Hunter's ground-effect limiting capability, which keeps the threshold stable where single-frequency two-box detectors would require constant retuning.
Archaeological Survey & Large Relic Recovery
Archaeologists surveying for buried stone foundations, iron farm implements, or large colonial-era relics rely on the XTREM Hunter's depth penetration to map subsurface features before committing to excavation. The iron rejection (IAR) setting discriminates moderate-sized ferrous objects, a capability that reaches new levels in the deep-seeking category and allows survey teams to filter out modern agricultural debris while preserving signals from large wrought-iron artifacts. The detector's 4-second recording function with play/pause option lets field teams capture and review target responses on-site, comparing signal characteristics across multiple passes to confirm target size and depth before flagging a location for excavation. The XTREM Hunter pairs seamlessly with the deep seeking metal detectors in our catalog, but its wireless integration with the DEUS II ecosystem and FMF technology give it a distinct edge in variable soil conditions.
Cache Hunting in Fields & Farmsteads
Cache hunters working rural properties and old homesteads use the XTREM Hunter to scan for buried mason jars, strong boxes, and large coin hoards that lie beyond the effective range of standard coin and relic detectors. The dual-coil configuration covers a wide detection area with each sweep, letting you survey large fields efficiently without sacrificing depth penetration. The detector's non-motion operation with adjustable autotune means you can hold the coils stationary over a suspect area and listen for threshold shifts that indicate a large conductive target, a technique that's particularly effective when working around tree roots or rocky outcrops where swinging a standard coil is impractical. The XTREM Hunter's lightweight 6.4-pound weight (detector plus remote) allows for extended scanning sessions without the shoulder and back fatigue that heavier two-box units cause, and the adjustable handle and support let you dial in the balance point that suits your height and swing style.

Wireless DEUS II Integration & Single-Operator Maneuverability
- Seamless pairing with DEUS II remote, headphones, and standard coils: switch from deep-seeking mode to precision pinpointing in seconds by swapping to a DEUS II FMF coil, the remote instantly presents the XTREM Hunter's unique menus when the dual coils are paired.
- Single-person operation with exceptional maneuverability: the 1.20-meter assembled length and telescopic stem design let you work solo in confined spaces, around foundation corners, or along fence lines where a two-person crew would struggle.
- Weatherproof construction for rain and adverse conditions: the waterproof housing withstands field use in wet weather, and the included XP hard case protects the detector during transport in truck beds or equipment trailers.
- Li-ion battery delivers over 10 hours of runtime: a single 18650 cell powers the detector through a full day of scanning, and the USB-C charge cable (included) restores a full charge in approximately 4 hours.
- Wireless headphone compatibility across the DEUS II line: use the included WSA II-XL waterproof headphones, or pair with WSA II or WS6 headphones you already own for the DEUS II, giving you flexibility to match the audio setup to your scanning environment.
Compare within the family
| Feature | XTREM Hunter | DEUS II RC + WS6 | ORX 11" X35 | ICON-X 11" FMF |
|---|---|---|---|---|
| Coil(s) included | XTR115TX and XTR115RX dual FMF coils | 9" FMF | 11" X35 | 11" FMF |
| Frequencies | Fast Multi Frequency (FMF) simultaneous | Fast Multi Frequency 4-45 kHz | 35 selectable frequencies 3.7-27.7 kHz | Simultaneous multi-frequency with 28 kHz mono mode |
| Waterproof rating | Weatherproof (rain and adverse conditions) | 20 meters (66 feet) | Weather-resistant | 6 feet |
| Battery | Li-ion 18650, over 10 hours runtime | Rechargeable battery | Rechargeable | Rechargeable |
| Weight | 6.4 lbs (detector + remote) | Lightweight wireless | Lightweight design | Lightweight carbon fiber stem |
Specifications
- Technology: Fast Multi Frequency (FMF) simultaneous, non-motion with adjustable autotune
- Maximum Depth: 5 meters (16 feet)
- Battery Type: Li-ion 18650 x1, 11 Watts/hour, 45g
- Battery Life: Over 10 hours
- Charging Time: Approximately 4 hours
- Charge Cable: USB-C
- Length Assembled: 1.20m (3.94 feet)
- Weight (Detector + Remote): 2.9 kg (6.4 lbs)
- Weight (Detector + Case): 5.8 kg (12.8 lbs)
- Case Size: 725 x 480 x 170 mm (28" x 18.9" x 6.7")
- Wireless Headphone Compatibility: WSA II-XL (IP68), WSA II, WS6
- Warranty: 5 years parts and labor
- Country of Manufacture: France

Settings When Paired with the XTREM Hunter
The DEUS II remote control presents a dedicated menu when paired with the XTREM Hunter dual coils, giving you access to settings optimized for deep-seeking detection. Sensitivity adjustment lets you dial in the detector's response to faint deep targets without amplifying ground noise, while reactivity control balances target separation against depth penetration when working in areas with mixed debris. The iron rejection (IAR) setting filters moderate-sized ferrous objects, a capability that's rare in the two-box category and allows you to ignore modern trash while preserving signals from large iron relics. Frequency scan offers 14 channels with auto or manual selection to avoid EMI interference from power lines, radio towers, or other detectors operating nearby. Ground balance operates in auto or manual mode, with manual ground balance giving experienced operators fine control in highly mineralized soil or black sand environments. The 4-second recording function captures target responses for playback and analysis, letting you compare signals across multiple passes to confirm target size and composition before committing to excavation.
Transport & Field Durability
The included XTR-CASE115 hard case is rain and shock proof, with custom foam cutouts that secure the dual coils, remote control, headphones, stem, and accessory kit during transport. The case dimensions (28" x 18.9" x 6.7") fit in the bed of a pickup truck or the cargo area of an SUV, and the reinforced corners and latches withstand the vibration and impact of rough-road travel to remote hunt sites. For detectorists who prefer backpack carry, the optional XP 280 backpack (sold separately) distributes the detector's weight across your shoulders and hips, making it easier to hike into backcountry cache sites or archaeological survey areas where vehicle access is limited. The XTREM Hunter's weatherproof construction means you can continue scanning in light rain or mist without risking damage to the electronics, a practical advantage when weather turns during a multi-day field project and you need to complete a site survey on schedule.
Who the XTREM Hunter Is Built For
The XTREM Hunter is purpose-built for detectorists who need to locate large buried targets at depths beyond the reach of standard coin and relic detectors. Construction professionals and utility contractors use it to map underground infrastructure before excavation, avoiding costly strikes on buried pipes or tanks. Archaeologists rely on it to survey large sites for buried foundations, cisterns, and substantial artifacts before committing resources to excavation. Industrial workers locate buried metal drums, machinery, and structural elements on decommissioned factory sites and brownfield properties. Cache hunters and treasure researchers deploy it in fields, farmsteads, and rural properties where family stories or historical records suggest buried valuables. The XTREM Hunter is not a small-target detector, it won't find individual coins or jewelry at depth, but for detectorists who need to scan large areas for substantial buried metal objects, it delivers depth and stability that competing two-box detectors can't match. If your detecting focuses on large relics, caches, or subsurface infrastructure, the XTREM Hunter's FMF technology and wireless DEUS II integration make it a flagship detector for specialized deep-seeking work.
Compatibility with DEUS II Standard Coils
One of the XTREM Hunter's most practical features is its ability to swap instantly to DEUS II standard wireless coils for precision pinpointing once you've located a large target with the dual coils. After the XTREM Hunter's dual coils flag a suspect area, you can detach them, attach a 9-inch or 11-inch DEUS II FMF coil, and the remote control automatically switches to the standard coil's menu and display. This lets you refine the target location and gather more detail about the target's size, depth, and composition before you start digging. The wireless pairing happens in seconds, no cable swaps or menu reconfiguration required, and the DEUS II coil's higher resolution target ID helps you distinguish between a large iron artifact and a non-ferrous cache. For detectorists who already own a DEUS II with standard coils, the XTREM Hunter integrates seamlessly into your existing kit, and for those new to the XP ecosystem, the ability to add DEUS II coils later gives you a clear upgrade path from deep-seeking to precision coin and relic hunting with the same remote and headphones.
Ground Effect Limiting in Mineralized Soil
The XTREM Hunter's unique ability to limit ground effects is what sets it apart from competing two-box deep-seeking detectors that rely on older single-frequency or pulse induction technology. In mineralized soil, hot rocks, and black sand environments, the FMF platform's simultaneous multi-frequency transmission reduces the ground signal that masks deep targets, keeping the threshold stable and the target response clear. This means fewer false signals from ground mineralization changes, less frequent retuning as you move across a site, and better target separation when a large conductive target sits near ferrous trash or mineralized rock. The auto ground balance mode tracks gradual mineralization shifts automatically, while manual ground balance lets experienced operators lock in a setting for a specific soil type and maximize depth penetration. For cache hunters working in the Southwest's caliche soil, the Midwest's red clay, or the Pacific Northwest's volcanic mineralization, the XTREM Hunter's ground-effect limiting translates to more confident target signals and fewer wasted excavations on hot rocks or ground noise.
Why Buy from Serious Detecting
Serious Detecting is an authorized XP Metal Detectors dealer, and every XTREM Hunter we ship carries the full 5-year manufacturer warranty on parts and labor. Our team has field experience with the DEUS II ecosystem and the XTREM Hunter's specialized deep-seeking applications, and we're available to walk you through the detector's pairing process, settings optimization, and coil-swap workflow before your first hunt. We offer free shipping on all orders, a 30-day return policy if the detector doesn't meet your field requirements, and a price-match guarantee so you're confident you're getting the best value. When you're investing in a specialized deep-seeking detector like the XTREM Hunter, buying from a dealer who understands the technology and can support your learning curve makes the difference between a frustrating first season and a successful cache recovery.
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