VLF stands for Pretty Lower Frequency and is similar technology Employed in detectors designed for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Here's 5 explanations why you could possibly choose a VLF about a PI What Totally blew https://www.simplexthailand.com/forum/topic/7839/how-metal-detectorists-discover-historical-relics