VLF stands for Pretty Lower Frequency and is identical technological know-how Employed in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from three kHz to 70 kHz. Allow me to share five reasons why you may perhaps opt for a VLF in http://taniecirlandzki.phorum.pl/viewtopic.php?p=117858#117858