VLF means Very Small Frequency and is similar 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 five main reasons why you could possibly choose a VLF above a PI http://eurotrucksimulator.phorum.pl/viewtopic.php?p=1529472#1529472