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The Nokta IM13 5" waterproof DD search coil transforms your Impact metal detector into a precision instrument for tight spaces and challenging terrain. Impact owners hunting parks with heavy iron trash or working around beach obstacles gain tighter target separation and improved maneuverability from the compact 5" footprint. The Double-D configuration handles mineralized ground better than concentric designs, making this coil a practical upgrade when you need to isolate individual targets in crowded signal environments.
What's Included with the Nokta IM13 5" DD Coil
- Nokta IM13 5" DD search coil for Impact detector
- Protective coil cover
- Complete mounting hardware
Why Impact Owners Reach for the IM13 5" Coil
- Tighter target separation in iron-infested parks and junky sites where the standard 11" coil masks individual targets
- Waterproof construction for beach hunting around pier pilings, rocky areas, and shallow water detecting in creeks
- DD configuration provides superior ground balance in mineralized soil compared to concentric coils
- Lighter weight reduces arm fatigue during extended detecting sessions in tight spaces
- Improved maneuverability around obstacles, between rocks, and in crowded swimming zones where precision matters more than depth
Tighter Target Separation in Iron-Infested Parks
Trashy Urban Parks and School Yards
The 5" coil excels in parks where decades of bottle caps, pull tabs, and foil create a wall of signals that overwhelms larger coils. The smaller footprint isolates individual targets, letting you hear the good signal between two pieces of trash. While you'll sacrifice some depth compared to the standard 11" coil, you gain the ability to work sites other detectorists skip as too junky.
- Best for: Urban parks with heavy trash density, school yards, picnic areas, old fairgrounds
- Less ideal for: Open fields or low-trash sites where the 11" coil's depth advantage outweighs separation benefits
How It Compares to Other Impact Coils
| Feature | IM13 5" | IM19 7.5x4 | IIM24 9.5x5 |
|---|---|---|---|
| Coil Size | 5in round (12.7cm) | 7.5in x 4in (19cm x 10cm) | 9.5in x 5in (24cm x 13cm) |
| Coil Type | DD | DD | DD |
| Waterproof | Fully submersible | Fully submersible | Fully submersible |
| Compatibility | Nokta Impact only | Nokta Impact only | Nokta Impact only |
| Best Use | Extreme trash, tight spaces | Trashy parks, confined areas | Balanced coverage, moderate trash |
Specifications
- Coil Size: 7.5 x 4 inches (19 x 10 cm)
- Configuration: DD (Double-D)
- Shape: Elliptical
- Waterproof: Yes
- Compatibility: Nokta Impact Metal Detector
- In the Box: Coil cover, mounting hardware
Beach Hunting Around Obstacles
Rocky beaches, pier pilings, and seawalls require a coil that fits into tight gaps without banging into structure. The IM13 lets you work between rocks where coins and jewelry settle after storms, and the waterproof construction handles wet sand and shallow water without issue. The DD coil pattern cuts through saltwater mineralization better than a concentric, giving you stable threshold in conditions that would ground-balance a larger coil into silence. For more on how metal detector technologies like DD coil geometry handle challenging ground, our technology guide covers the physics behind ground balance and target separation.
Specifications
- Coil Size: 5 inches
- Configuration: DD (Double-D)
- Waterproof Rating: Fully waterproof
- Compatibility: Nokta Impact metal detector only
- Weight: Lighter than standard 11" coil
- Included Accessories: Coil cover, mounting hardware
Why Buy from Serious Detecting
We're an authorized Nokta dealer, which means your IM13 coil ships with the full manufacturer warranty and our team's field support. Our staff runs Nokta metal detectors in the field and can answer setup questions specific to the Impact platform. Every order ships free, and our 30-day return policy lets you test the coil in your actual hunting conditions. We also price-match, so if you find a lower price on an identical new IM13 coil from an authorized dealer, we'll match it.
Customer Questions & Expert Answers
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