VLF means Extremely Lower Frequency and is identical technologies Utilized in detectors crafted for coins, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Listed here are five explanations why you would possibly decide on a VLF more than a PI https://www.bonback.com/forum/topic/279014/gold-detector-finds-that-sparked-legends