VLF means Incredibly Low Frequency and is similar technological know-how Utilized in detectors crafted for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Here's five explanation why you would possibly choose a VLF around a PI The depth at https://webhitlist.com/profiles/blogs/gold-detector-technology-explained-in-detail