VLF means Incredibly Minimal Frequency and is the same technological know-how Utilized in detectors built for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Listed here are 5 reasons why you would possibly select a VLF over a PI https://webhitlist.com/profiles/blogs/gold-detector-for-portable-field-operations