ZVT (Zero Voltage Transmission) creates ultra‑constant high-power opposite polarity magnetic fields, increasing gold sensitivity. This innovative technology detects gold nuggets at extreme depths. Super‑D The Super‑D smart coil consists of a central transmit winding and two outer receive windings. This configuration greatly decreases interference from magnetic soils, reducing ground noise.GPSi uses a u‑blox GPS engine to integrate location and time data with detector settings. This creates WayPoint, FindPoint and GeoHunt files to use with XChange 2.Wi‑Stream uses low-power digital audio transmission to achieve no perceivable audio time lag (<10 ms). This provides reliability and maximum sound quality.NEW GOLD TECHNOLOGYA quantum leap in gold performance with breakthrough new technology from Bruce Candy.ZVT technology goes to the NEXT LEVEL for all serious gold prospectors, providing substantially improved depth. No longer will you be limited to using either sine wave continuous VLF transmission detectors, that struggle in mineralised ground, or square wave PI transmission detectors, that can be insensitive to varying gold sizes and compositions.“This revolutionary new ZVT technology far surpasses GPX detectors for detecting deep large nuggets AND finding gold at any depth. The GPZ 7000 will open up the gold fields again.”Bruce Candy, GPZ Inventor.