VLF means Extremely Minimal Frequency and is identical know-how Employed in detectors designed for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Listed below are 5 explanations why you would possibly decide on a VLF around a PI The https://www.tapatalk.com/groups/lovinworld/viewtopic.php?f=66&t=14242&from_new_topic=1