VLF stands for Very Very low Frequency and is identical technological innovation used in detectors developed for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Listed here are 5 explanations why you could possibly decide on a VLF around http://taniecirlandzki.phorum.pl/viewtopic.php?p=117858#117858