VLF means Extremely Lower Frequency and is identical engineering Utilized in detectors constructed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Allow me to share 5 reasons why you could choose a VLF around a PI Q: Wherever http://inquisnower.phorum.pl/viewtopic.php?p=754096#754096