2-PIECE BUNDLE. This bundle includes MINELAB'S GPX 6000 metal detector and 17" GPX coil. COMPLETE KIT. This gold detector and coil professional bundle will help you easily find large gold nuggets buried deep underground. GPX 6000. Powered by Geo Sense-Pi technology that precisely analyzes gold signals while eliminating competing signals, the GPX 6000 is the fastest, lightest, and simplest way to find all types of gold. MONOLOOP COIL. Increase your chances of finding large gold nuggets at a greater depth and in less conductive (salty) ground with the GPX 17 search coil. WATERPROOF COILS. Don't stop your search at the beach or the bank. This gold detector and coil bundle can be submersed up to 3.3 feet (1 meter). This 2-piece metal detector bundle features MINELAB's GPX 6000 gold detector and 17" waterproof monoloop coil. Use them together to accurately find large gold nuggets buried deep beneath the ground. Powered by Geo Sense-Pi technology, the GPX 6000 is the fastest, lightest, and simplest way to find all types of gold.. The GPX 17 coil can increase your chances of finding large gold nuggets at a greater depth and in less conductive (salty) ground. This bundle features the metal-detecting essentials you need for a successful hunt.