VLF means Really Small Frequency and is identical technologies used in detectors built for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Listed below are five explanations why you might choose a VLF in excess of a PI The http://inquisnower.phorum.pl/viewtopic.php?p=743421#743421