Minelab 15" x 12" Monoloop Commander Coil for GPX, GP & SD Detectors

The Minelab 15" x 12" Monoloop Commander coil is the semi-elliptical, deep-seeking search coil that GPX 5000, GPX 4500, and older GP and SD prospectors reach for when they need wide ground coverage without giving up small-gold sensitivity. Its monoloop winding is built for mineralized ground, making this one of the most versatile GPX coils for open-country nugget hunting. Ships genuine from an authorized Minelab dealer with coil cover, mounting hardware, and full manufacturer warranty.

Why GPX 5000 & 4500 Owners Choose the 15" x 12" Commander

• Wider sweep, fewer passes. The 15" x 12" semi-elliptical footprint clears large open patches faster than an 11" coil — critical when you're following a nugget trail across virgin ground.
• More depth on bigger gold. The elongated footprint and monoloop winding drive deeper target response on larger nuggets in moderate mineralization.
• Small-gold sensitivity retained. Sub-gram nuggets still register clearly — you're not trading finesse for coverage when the patch runs hot.
• Water-resistant build. Handles wet-grass and creek-edge prospecting without the weight penalty of a fully waterproof coil.
• Genuine Minelab quality. Multi-strand Litz wire and gold-plated connectors deliver low-noise signal transmission across thousands of field hours.

Best Uses for the 15" x 12" Monoloop Commander Coil

Open-country nugget hunting in moderate mineralization

Running a GPX 4500 or 5000 across moderately mineralized goldfields, pair this coil with Fine Gold or Enhance timings to balance depth and stability. The 15" x 12" footprint covers more ground per sweep than an 11" coil, so you clear transects faster. It's less suited to tight-trash sites, where a smaller double-D coil's lateral discrimination helps more.

Creek-edge and wet-grass prospecting

The water-resistant rating supports shallow-water work along creek edges and damp ground after rain — scenarios where a fully submersible coil isn't necessary but moisture protection is. We've run it in runoff channels and seasonal-creek margins in Arizona and Nevada with no issues from splashing or damp ground.

Specifications

• Compatibility: Minelab GPX 5000, GPX 4800, GPX 4500, GPX 4000, GP 3500, GP 3000, GP Extreme, SD 2200v2, SD 2200d, SD 2100v2, SD 2100e, SD 2100, SD 2000
• Coil Size: 15in x 12in (38cm x 30cm)
• Coil Shape: Semi-elliptical
• Coil Winding: Monoloop
• Water Protection: Water-resistant (not submersible)
• Cable: Low-noise shielded, wired connection
• Construction: Multi-strand Litz wire, gold-plated connectors
• Included Accessories: Coil cover, mounting hardware

Why Buy from Serious Detecting

Serious Detecting is an authorized Minelab dealer, and this Commander coil ships with Minelab's manufacturer warranty. Our team runs GPX detectors in the field, we've tested this coil in Arizona washes and Nevada goldfields, and we stock the full range of metal detector search coils so you can compare geometry and winding options before committing. Free shipping on all orders, 30-day returns, and price-match guarantee. If you need guidance on coil selection for your detector or terrain, our support team has the field hours to help.