VLF stands for Very Small Frequency and is similar know-how Employed in detectors built for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Here are 5 main reasons why you may choose a VLF in excess of a PI https://www.authoraevia.com/forum/topic/the-ultimate-metal-detector-buying-guide/#postid-2469151