VLF means Quite Low Frequency and is identical technology Employed in detectors built for cash, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from three kHz to 70 kHz. Listed here are five explanations why you would possibly select a VLF about a PI The neatest http://classichonda.phorum.pl/viewtopic.php?p=176963#176963