VLF stands for Quite Small Frequency and is the same technological know-how Utilized in detectors created for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Allow me to share five main reasons why you may perhaps choose a VLF http://ostrza-avalon.phorum.pl/viewtopic.php?p=400517&sid=4aad1fcc535bf610a7344bb4075808c6#400517