VLF means Very Lower Frequency and is identical technologies Employed in detectors developed for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from three kHz to 70 kHz. Listed below are five explanations why you could possibly pick a VLF in excess of a PI https://www.nadeyk.com/forums/topic/443/gold-detector-in-the-golden-hills/view/post_id/1094