VLF means Incredibly Reduced Frequency and is similar technological know-how Employed in detectors created for coins, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Here are five explanation why you could possibly select a VLF above a PI The question http://eurotrucksimulator.phorum.pl/viewtopic.php?p=1533326#1533326