VLF means Incredibly Lower Frequency and is identical technologies used in detectors designed for cash, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Here are 5 main reasons why you would possibly pick a VLF around a PI Make the https://www.thitrungruangclinic.com/forum/topic/70724/gold-detector-mysteries-in-forgotten-valleys