VLF means Quite Small Frequency and is identical technological innovation used in detectors built for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Listed here are 5 explanation why you would possibly pick a VLF more than a PI https://www.navacool.com/forum/topic/279057/gold-detector-discoveries-that-stun-newbies