Nokta Double Score Multi-Frequency Waterproof Metal Detector

The Nokta Double Score is a simultaneous multi-frequency metal detector built for detectorists stepping up from single-frequency VLF machines, pairing Multi-IQ4 SMF technology with a fully submersible IP68-rated body, adjustable recovery speed from 1 to 3, and a built-in wireless audio module that connects directly to Nokta Score Series headphones. It targets the price point where most hunters outgrow the target-ID instability and wet-sand limitations of entry-level detectors, delivering locked target identification across mineralized parks, saltwater beaches, and iron-choked colonial sites. The Double Score ships with a 12-inch by 9-inch waterproof DD coil, carbon-fiber collapsible shaft, and USB charging, covering the transition from dry-sand coin shooting to shallow surf hunting without a second rig.

What's Included with the Nokta Double Score

• Nokta Double Score control unit with carbon-fiber collapsible stem
• SC30 12-inch by 9-inch waterproof DD search coil with coil cover
• USB charging and data cable
• System box and quick-start documentation
• 3-year Nokta manufacturer warranty

Multi-IQ4 SMF Stability Across Mineralized Ground and Wet Salt Sand

The Double Score runs simultaneous multi-frequency detection centered at 15 kHz, processing multiple frequencies at once rather than cycling through them sequentially. On the ground, this translates to target ID consistency: a clad quarter reads the same numeric value on dry sand, the wet apron, and inland parks under iron mulch, instead of bouncing between conductivity ranges the way single-frequency machines do when soil mineralization shifts mid-swing. The 60-segment target ID scale gives finer separation than the simplified numeric maps on entry-level VLFs, and harmonic audio tones let us pick out multiple targets in a single pass without looking at the screen. We run the Double Score alongside other machines in our multi-frequency metal detectors catalogue, and the locked target IDs hold up in conditions where 6.5 kHz single-frequency detectors start smearing readings.

Saltwater Beaches and the Wet Sand Transition Zone

Wet salt sand is where single-frequency detectors lose audio stability and start nulling on targets. The Double Score's Multi-IQ4 SMF reads the wet apron and shallow surf without target-ID smear, and the IP68 16-foot waterproof rating lets us walk the swash zone and submerge the coil cleanly without worrying about seal integrity. The iron filter set between 2 and 3 keeps gold rings and silver chain links in the audio range while filtering out small bottle caps that hide in the same conductivity band. We run Beach mode with sensitivity between 6 and 8, backing off if EMI rises near boardwalks or power lines, and set ground balance to Tracking so the detector adjusts automatically as we move from dry sand to wet. Discrimination stays in all-metal with the iron filter handling rejection, which preserves depth on faint targets that notch discrimination would mask.

Trashy Old Parks and Tot Lots with Adjustable Recovery Speed

Adjustable recovery speed from 1 to 3 earns its keep in older parks layered with bottle caps and rusted iron. Crank recovery to 3 and the Double Score separates close targets, so coins next to nails get their own audio instead of one masked beep. We run Park mode with sensitivity between 7 and 8, set ground balance to Auto, and notch out segments 1 to 5 while keeping 6 to 60 open. The faster recovery speed cuts the detector's response time, which means less audio overlap when the coil passes over two targets within an inch of each other. Drop recovery back to 1 in clean parks and depth improves slightly, but in trashy ground the separation advantage outweighs the depth trade.

Plowed Fields and Open Ground for Relics

Open ground rewards stability over speed. We drop recovery to 1, run Field mode, and the Double Score holds a clean threshold across uneven mineralization, with the SC30 12-inch by 9-inch coil giving wide coverage on every sweep. Manual ground balance lets us lock in a number for known soil and stop fighting auto adjustments on the swing edge, which matters on long passes through fields where the soil reads consistently for hours at a time. Sensitivity runs between 8 and 9, and discrimination stays in all-metal with iron filter set between 4 and 5. The manual ground-balance workflow is simple: pump the coil over clean ground until the detector beeps neutral, lock the number, and swing. Tracking ground balance is the fallback when soil mineralization shifts every few steps, which happens in creek beds and old homestead foundations where fill dirt meets native clay.

Lightweight Build and Custom User Profiles for Site-Specific Settings

• Carbon-fiber shaft collapses for travel and extends for taller users: the Double Score weighs 2.7 pounds with the SC30 coil mounted, light enough for full-day sessions without wrist fatigue building up by the third hour.
• Two custom user profiles save site-specific configurations: Profile 1 holds a beach setup with Beach mode, Tracking ground balance, and iron filter at 2; Profile 2 holds a park or relic configuration with Park or Field mode, Auto or Manual ground balance, and notch discrimination. A single button press swaps between them at the next site, cutting wasted time at the truck and keeping swing time productive.
• Backlit LCD reads cleanly in direct sun: the custom display shows target ID, depth estimate, sensitivity level, ground balance number, and discrimination segments on one screen, with contrast adjustment for early-morning low-light starts and midday glare.
• Integrated LED flashlight for early-morning beach starts: the built-in light is useful for tot-lot recoveries after dusk and pre-dawn surf sessions when natural light is minimal.
• Vibration alerts run alongside audio: the Double Score vibrates on target detection, which is useful for divers hunting shallow surf and noisy beachfronts where audio gets drowned out by wave noise and wind.

Built-In Wireless Audio and Pinpointer Compatibility

The Double Score ships with a built-in wireless audio module that pairs directly to Nokta Score Series wireless headphones, sold separately or bundled in our headphone-included SKUs. The Score Series headphones use Nokta's low-latency wireless protocol, so audio stays in sync with the swing without the lag that Bluetooth introduces. Audio also runs through a built-in speaker for quick checks without headphones, though we run headphones for serious hunting to catch faint signals that the speaker misses. For pinpoint recoveries we pair the Double Score with the Nokta AccuPOINT pinpointer, which links wirelessly to the detector audio over the same wireless chain, so the pinpointer beeps through the headphones and we don't need to pull them off to hear the probe.

Iron Filter and Discrimination for Bottle Caps and Small Iron

The iron filter runs from 0 to 9, with higher numbers rejecting more ferrous targets. Set it between 2 and 3 at the beach and small bottle caps get filtered out while thin gold rings and silver dimes stay in audio range. Crank it to 5 or 6 in old parks and rusted nails disappear, though we lose some sensitivity on small gold at the top end of the scale. Notch and segment discrimination work alongside the iron filter: the 60-segment scale lets us notch out specific conductivity ranges, so pull tabs get rejected while nickels and gold rings in the adjacent segments stay active. Discrimination is adjustable per mode, and the two user profiles save separate discrimination maps for beach and inland sites.

SC30 Coil Coverage and Optional Coil Compatibility

The SC30 12-inch by 9-inch waterproof DD coil ships standard and strikes a balance between ground coverage and small-target sensitivity. It covers ground efficiently in open terrain, with enough footprint to make plowed-field passes productive, and the DD configuration handles mineralized soil better than concentric coils at the same size. The coil is fully submersible to 16 feet alongside the control box and shaft, so the entire detector works in shallow surf and the wet sand transition zone. For tighter target separation in trashy sites, Nokta offers smaller coils in the Score Series accessory line, though the SC30 is the right call for general coin and relic hunting, beach work, and most park sessions. Hunters stepping up from entry-level machines often cross-shop the rest of the Score lineup on our Nokta collection page, particularly the Triple Score with its dual-coil Pro Pack and dedicated Relic search mode.

Ground Balance Options: Automatic, Manual, and Tracking

The Double Score offers three ground-balance modes. Automatic ground balance runs a quick calibration at startup and locks the number, which works in stable soil where mineralization doesn't shift across the site. Manual ground balance lets us pump the coil over clean ground, listen for the neutral beep, and lock in a specific number, which is useful in fields where we know the soil reads consistently and we want to eliminate auto-adjustment drift on the swing edge. Tracking ground balance adjusts continuously as we swing, holding steady when the soil shifts every few steps, which is the difference between a clean threshold and constant chatter on hot ground. We run Tracking at the beach where dry sand transitions to wet salt sand, and Manual in plowed fields where the soil mineralization stays uniform for hours. Auto is the fallback for quick park sessions where we don't want to spend time on manual calibration.

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Specifications

• Technology: Multi-IQ4 SMF (simultaneous multi-frequency, centered at 15 kHz)
• Search Coil: SC30 12in x 9in Waterproof DD with coil cover
• Search Modes: Park, Beach, Field
• Target ID Scale: 60 segments
• Ground Balance: Automatic, Manual, Tracking
• Recovery Speed: Adjustable 1 to 3
• Iron Filter: 0 to 9
• Waterproof Rating: IP68 to 16ft (5m), control box, shaft, and coil fully submersible
• Weight: 2.7 lbs (1.25kg) with SC30 coil
• Shaft: Carbon-fiber, collapsible
• Audio: Built-in wireless module (pairs to Nokta Score Series headphones, sold separately), built-in speaker, vibration alerts
• Battery: USB rechargeable
• Display: Custom backlit LCD with integrated LED flashlight
• User Profiles: Two custom profiles for saved settings
• Warranty: 3-year Nokta manufacturer warranty

Why Buy from Serious Detecting

We are an authorized Nokta dealer, and every Double Score ships with a full 3-year manufacturer warranty backed directly by Nokta's specialized technical support team. Our team runs Nokta detectors in the field across Arizona caliche, California wet sand, and Midwest iron-choked parks, so the setup recommendations above come from real hunt sessions, not spec sheets. Free shipping on all orders, 30-day returns, and price-match guarantee apply. For detectorists new to the hobby, our getting started with metal detecting guide covers site selection, recovery tools, and first-hunt expectations.