VLF stands for Really Minimal Frequency and is identical know-how Utilized in detectors crafted for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Allow me to share 5 main reasons why you would possibly opt for a VLF above https://chojnow.pl/forum/thread/view/id/1366940