VLF stands for Quite Reduced Frequency and is identical engineering Employed in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from three kHz to 70 kHz. Listed here are five explanations why you may perhaps go with a VLF over a PI https://kisanlink.com/forums/discussion/poultry-discussion/complete-guide-to-choosing-metal-and-gold-detectors