VLF stands for Incredibly Very low Frequency and is similar know-how used in detectors developed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from three kHz to 70 kHz. Listed below are five reasons why you may perhaps opt for a VLF above a http://lkf.phorum.pl/viewtopic.php?p=53724#53724