VLF means Incredibly Low Frequency and is identical engineering Employed in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Allow me to share 5 explanation why you might pick a VLF more than a PI The https://www.navacool.com/forum/topic/279100/how-to-detect-jewelry-using-a-metal-detector