VLF means Pretty Minimal Frequency and is similar technologies used in detectors constructed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Listed here are 5 explanations why you could possibly decide on a VLF above a PI Besides https://www.tapatalk.com/groups/lovinworld/viewtopic.php?f=66&t=14245&from_new_topic=1