VLF means Incredibly Minimal Frequency and is similar technological innovation Utilized in detectors crafted for coins, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Here's five explanation why you would possibly pick a VLF over a PI Additionally, to be http://classichonda.phorum.pl/viewtopic.php?p=176956#176956