VLF stands for Incredibly Lower Frequency and is the same engineering Utilized in detectors constructed for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Allow me to share five explanations why you could choose a VLF above a PI https://www.lycantic.com/forum/viewtopic.php?f=2&t=1614408