Nokta Simplex Ultra Waterproof Metal Detector with 11" DD Coil

The Nokta Simplex Ultra is a single-frequency VLF metal detector designed for coin shooting, relic hunting, and beach detecting, with adjustable recovery speed, custom tone breaks, and target-depth readout capabilities not present on the entry-level Simplex Lite or Simplex BT. Those three controls change real hunts: faster recovery clears trashy ground without ghosting good signals, custom tone breaks let the ear separate iron from non-ferrous, and the depth indicator gives a read on how hard a target is sitting before the shovel goes in. The machine is rated IP68 submersible and ships with an 11-inch DD coil, built-in Bluetooth with aptX Low Latency, and a fully carbon-fiber shaft that collapses to 25 inches for travel. Detectorists stepping up from basic single-frequency entry machines gain the control granularity that mid-range hunters rely on in the field.

What's Included with the Nokta Simplex Ultra

• Simplex Ultra metal detector on fully carbon-fiber shaft with built-in 2300 mAh lithium battery
• SX28 Waterproof DD Search Coil, 28 cm / 11 inches, with coil cover
• USB charging and data cable
• Printed quick-reference card (full manual available as free PDF download from Nokta)

Adjustable Recovery Speed and Custom Audio for Trashy Ground

Park and Schoolyard Coin Hunting

City parks throw bottle caps, foil, and pull-tabs at any VLF detector, and a fixed-recovery basic machine usually pays for that in missed coins. In Park mode the Simplex Ultra runs Recovery Speed at the higher settings so signals separate cleanly between trash, while custom Tone Break drops the iron range to a low grunt and lifts mid and high conductors. Notch out the pull-tab band on the 01-99 scale and the page goes quiet on aluminum without losing nickels. Auto Ground Balance Tracking holds the threshold steady as soil shifts between wet and dry zones.

Relic Hunting in Iron-Heavy Sites

Old farmsteads and homestead edges run thick with cut nails and barn iron. The 99 Tone mode spreads target tones across the full ID range, and Tone Break lets us drop the iron region to a low grunt so a flat brass button or large copper rings up unmistakably. Auto Ground Balance Tracking holds the threshold steady as we move from plowed dirt onto burn piles; lock manually when the ground is hot and we want a stable reference. Recovery Speed adjustments let us swing faster over nail beds without the detector stacking signals.

Saltwater Beach and Wet Sand

Salt mineralization is what kills cheap VLFs at the surf line. Beach mode retunes the ground filter for conductive sand so the threshold stays usable instead of falsing every step, and the IP68 submersion rating lets us wade to chest depth without thinking about it. The 11-inch SX28 coil clears dry-towel zones quickly and still cuts through wet sand on the way back to the truck. Frequency Shift gives small offsets to walk away from a noisy neighbor or power line.

Lightweight Carbon-Fiber Build and Integrated Bluetooth

• Fully carbon-fiber shaft brings total weight to 2.6 pounds and collapses to 25 inches, so this machine travels in a daypack and balances on long swings.
• Built-in Bluetooth with aptX Low Latency pairs to Nokta BT headphones without a dongle stuck in the housing, so wireless audio stays in sync with the signal.
• Graphic LCD reads in full sun and at night, and the front-mounted LED flashlight handles dawn or dusk hunts.
• Sealed membrane keypad rated for the same IP68 submersion as the rest of the housing, so every control works underwater.
• Vibration alerts run alongside audio for loud beach days or hearing-impaired hunters, keeping target signals accessible in high-noise environments.

Coin and Relic ID Scale with Target Depth Indicator

The Simplex Ultra is the only model in the Nokta Simplex series with a dedicated Coin and Relic ID scale plus a Target ID Depth indicator. A second readout shows approximate target depth, and the dedicated coin and relic scale puts familiar reference points next to the raw 01-99 number. Hours of nail chatter turn into manageable signal when we can read depth and conductivity together before deciding if to dig. The 01-99 target ID scale gives finer resolution than the 4-zone needle gauges on entry-level machines, so iron, foil, nickel, zinc, copper, and silver each read in their own number range.

Field, Park, Beach, and Custom Tone Modes

The Simplex Ultra ships with six search modes: Field, Park, 4 Tone, 99 Tone, Beach, and All Metal. Field mode covers general-purpose hunting in moderate ground, Park mode adds recovery speed for trashy sites, Beach mode retunes the ground filter for conductive saltwater sand, and the two custom tone modes let us spread audio across the ID scale. All Metal runs a true threshold for deep targets in clean dirt. Tone Break, Tone Frequency, and Tone Volume controls let us set custom audio breakpoints across the 01-99 ID scale so iron drops to a low grunt and high conductors ring up clear. Iron Off and Ground Suppressor handle hot-rock and ferrous-loaded ground.

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Specifications

• Operating Frequency: 15 kHz
• Search Modes: Field, Park, 4 Tone, 99 Tone, Beach, All Metal
• Target ID: 01-99
• Sensitivity: 30 levels
• Volume: 5 levels
• Ground Balance: Automatic / Manual
• Coil: 11in DD Waterproof (SX28)
• Shaft: Fully Carbon Fiber
• Weight: 2.6 lbs (1.2kg)
• Length: 25in-52in adjustable
• Battery: 2300 mAh Lithium (approx. 12 hours per charge)
• Waterproof Rating: IP68 / 16ft (5m)
• Warranty: 3 Years

Why Buy from Serious Detecting

We are an authorized Nokta dealer, and every Simplex Ultra ships with the full 3-year manufacturer warranty backed directly by Nokta's specialized technical support team. Our team has run the Simplex platform in the field across park hunts, beach sessions, and relic sites, so we answer setup and mode questions from real use rather than spec sheets. Free shipping, 30-day returns, and a price-match guarantee cover every order, and firmware updates keep the detector current with each Nokta release instead of aging out.