VLF means Pretty Low Frequency and is the same technologies Utilized in detectors designed 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 may pick a VLF over a PI So, the https://zenwriting.net/starc13/why-choose-metal-and-gold-detectors