VLF stands for Quite Very low Frequency and is similar technological innovation Employed in detectors created for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Here i will discuss 5 reasons why you might decide on a VLF in http://lkf.phorum.pl/viewtopic.php?p=53152#53152