VLF stands for Extremely Low Frequency and is similar technological know-how Employed in detectors created for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from three kHz to 70 kHz. Allow me to share five explanation why you may perhaps decide on a VLF in https://kisanlink.com/forums/discussion/poultry-discussion/complete-guide-to-choosing-metal-and-gold-detectors