VLF stands for Pretty Lower Frequency and is the same technology used in detectors constructed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Listed here are 5 explanation why you would possibly choose a VLF about a PI https://www.newgenstravel.com/forum/topic/23844/gold-detector-and-the-hidden-riverbed-gold