VLF means Extremely Lower Frequency and is the same technological innovation Employed in detectors crafted for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from three kHz to 70 kHz. Here i will discuss five main reasons why you could possibly pick a VLF over http://sarmacikrolewscy.phorum.pl/viewtopic.php?p=25416#25416