VLF stands for Really Reduced Frequency and is similar engineering Employed in detectors developed for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Listed here are five explanation why you may choose a VLF in excess of a PI https://www.hoomet.com/forums/topic/76668/gold-detector-surprises-you-won-t-believe/view/post_id/232663