Fisher Gold Bug-2 with 10" coil. Take prospecting to new levels with the next generation of Gold Bug, the ultra high frequency Gold Bug-2. Fisher engineers worked for years to build a detector that would carry on the Gold Bug’s well-deserved reputation as the worlds premier nugget hunter, and this is it! Like the original Gold Bug, the Gold Bug-2 is designed for finding gold nuggets. It offers extraordinary sensitivity, ultra-high frequency (the highest operating frequency on the market), iron-discrimination, dust and moisture resistance, audio-boost and the ability to operate in extremely mineralized soil with a 3 position mineralization switch.