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May 20, 2026 - 11:07 AM
Choose the C28 11-inch coil when you hunt trashy sites, confined spaces, or areas with moderate ground mineralization where target separation matters more than maximum depth. The C28 excels in old homesteads, school grounds, and parks where iron nails, bottle caps, and pull tabs litter the ground, because the smaller footprint isolates individual coin signals between trash targets. The C45 17.5-inch coil delivers maximum depth and ground coverage for wide-open fields and beaches, but the larger size makes it more sensitive to ground mineralization and harder to maneuver around obstacles. For more guidance on coil selection, explore metal detector search coils: DD, concentric, monoloop & SEF upgrades.
