VLF means Quite Minimal Frequency and is similar know-how Utilized in detectors created for coins, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Here i will discuss 5 explanations why you might go with a VLF about a PI Now https://dcoinformatica.com/forums/topic/109412/metal-detector-techniques-for-beginners/view/post_id/736615