VLF means Incredibly Low Frequency and is identical technological know-how Utilized in detectors developed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Here are five explanations why you could go with a VLF in excess of a PI https://www.nadeyk.com/forums/topic/443/gold-detector-in-the-golden-hills/view/post_id/1094