VLF means Incredibly Lower Frequency and is the same technologies Employed in detectors created for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from three kHz to 70 kHz. Here i will discuss five main reasons why you could go with a VLF about a https://kisanlink.com/forums/discussion/poultry-discussion/complete-guide-to-choosing-metal-and-gold-detectors