Mars Goliath 15” DD Coil Minelab X-Terra Dual Frequency 3 & 18.75 kHz Detector

Maximize Your Depth & Coverage with the Ultimate Deep-Seeking Coil

Go deeper and cover more ground with the Mars Goliath 15” DD Search Coil. Engineered for maximum performance, this heavy-duty coil is the perfect upgrade for detectorists searching large, open spaces like fields, beaches, and pastures. By combining a massive 15-inch scan footprint with advanced Dual-Frequency technology, the Goliath coil ensures you won't leave deep, valuable targets behind.

Innovative Dual-Frequency Technology

No need to swap coils to change your frequency! This unique coil supports both 3 kHz (for maximum depth on highly conductive targets like large silver coins and relics) and 18.75 kHz (for high sensitivity to small gold nuggets, thin jewelry, and low-conductivity targets).

How to Change Frequencies:
Simply place a standard 9V battery against the two prongs on top of the search coil. A green light will illuminate to signal the frequency change. Once you see the light, power your metal detector off and back on to complete the setup.

Key Features

• Extreme Target Depth: Engineered to squeeze maximum detection depth out of your detector, pushing past the limits of stock coils.
• Massive 15" (38 cm) Scan Area: Cover expansive open fields in a fraction of the time with a highly efficient sweep path.
• 100% Waterproof Design: Fully sealed and waterproofed—perfect for hunting along shorelines, wet grass, and shallow water.
• Robust EMI Protection: Shielded against electrical interference (EMI) for stable, quiet operation even near power lines or highly mineralized ground.

Compatibility

This Mars Goliath coil is fully compatible with the following Minelab models:

• Minelab X-Terra 505
• Minelab X-Terra 705

Specifications & Build Quality

• Coil Size: 15" (38 cm)
• Configuration: Double-D (DD)
• Connector Type: Secure Screw-On
• Premium Construction: Outer coil shell manufactured from high-impact resistant, UV-protected plastic and filled with high-quality epoxy resin.
• Heavy-Duty Mounting: Extremely robust coil mounting bracket with full cable strain relief offering complete waterproofing.
• Warranty: 2-Year Manufacturer Warranty

*Stock photo used, actual item may differ slightly.