VLF means Extremely Very low Frequency and is the same know-how used in detectors designed for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Allow me to share five explanation why you may perhaps decide on a VLF over https://kisanlink.com/forums/discussion/dairy-cows-cattle/gold-detector-setup-guide-for-new-users