VLF means Incredibly Small Frequency and is the same know-how used in detectors developed for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Listed here are 5 explanations why you would possibly choose a VLF above a PI Your https://worldschoolface.com/index.php/forum/thread/2266/metal-detector-tricks-to-boost-your-finds/