VLF stands for Very Small Frequency and is similar technological know-how Utilized in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Here i will discuss 5 explanations why you would possibly decide on a VLF over https://elearn.ellak.gr/mod/forum/discuss.php?d=43775