Nokta SP22 8.5" DD Waterproof Search Coil for Simplex+ Metal Detector

The Nokta SP22 8.5" DD waterproof search coil is a genuine Nokta replacement designed for the Simplex+ metal detector, delivering improved target separation in high-trash environments through its Double-D configuration. The 8.5-inch footprint strikes a practical middle ground between the maneuverability of smaller coils and the depth advantage of larger ones, and the fully waterproof construction matches the Simplex+ detector's submersion rating for surf hunting and shallow-water wading.

What's Included with the Nokta SP22 Coil

• Nokta SP22 8.5" DD waterproof search coil with attached cable
• Protective coil cover to prevent scratches and dings
• Complete mounting hardware kit for secure attachment to Simplex+ lower shaft

Why Simplex+ Owners Reach for the SP22 Coil

• Double-D coil geometry isolates individual targets in trash-dense sites where concentric coils see overlapping signals as a single response, letting you cherry-pick keepers from iron scatter
• 8.5-inch diameter offers deeper penetration than smaller coils while staying light enough for all-day swinging in tight cover or along shorelines
• Waterproof to 10 feet so you can work the surf zone, wade creeks, or hunt in heavy rain without worrying about coil failure
• DD design reduces false signals in mineralized soil on hot rocks and black sand
• Protective cover included in the kit absorbs impact from rocks and roots, extending coil life during aggressive digging sessions

Tighter Target Separation in Trashy Park Sites

Urban Parks and Old Fairgrounds

The SP22's DD field pattern excels in high-traffic areas where decades of bottle caps, pull-tabs, and foil mask silver coins and gold jewelry. We've used this coil at city parks with 100+ years of use, and the narrow detection field lets you work between trash targets that would blend into a single jumbled signal under a concentric coil. The 8.5-inch size gives you enough sweep width to cover ground efficiently without sacrificing the precision you need when a wheat penny sits two inches from a rusty nail. When you're hunting a site where every swing produces multiple tones, the SP22 helps you isolate the good ones. Explore our full selection of metal detector search coils: dd, concentric, monoloop & sef upgrades to match your hunting style across different detector platforms.

Saltwater Beach and Wet Sand Stability

Simplex+ owners working the surf zone or wet sand pack appreciate the SP22's waterproof construction and ground-balancing advantage in mineralized conditions. The DD coil reduces false signals from saltwater and black sand, letting you run higher sensitivity without chatter. We run this coil in knee-deep water during low tide, sweeping parallel to the wave line where recent storm action deposits fresh targets. The 8.5-inch footprint is small enough to probe between rocks in tidal pools but large enough to cover productive stretches of open beach without endless overlapping passes. The included cover takes the beating from shell hash and gravel so the coil itself stays clean. Learn more about metal detector technologies that optimize performance in challenging ground conditions.

Specifications

• Compatibility: Nokta Simplex+ metal detectors only
• Coil Size: 8.5 inches
• Coil Type: DD (Double-D)
• Waterproof Rating: Submersible to 10 feet (3 meters)
• Included Accessories: Protective coil cover, mounting hardware kit
• Cable: Attached, no separate connector
• Manufacturer: Nokta Detection Technologies

Why Buy from Serious Detecting

We're an authorized Nokta dealer, so every SP22 coil ships with the full manufacturer warranty and genuine Nokta construction. Our team runs Nokta metal detectors in the field, and we've tested this coil in mineralized soil, wet sand, and high-trash urban sites to verify the performance claims before we stock it. You get free shipping on every order, a 30-day return window if the coil doesn't fit your hunting style, and our price-match guarantee if you find it cheaper elsewhere. We answer technical questions from real detecting experience, not a script.