VLF means Very Reduced Frequency and is similar technological innovation used in detectors developed for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from three kHz to 70 kHz. Listed here are 5 reasons why you would possibly opt for a VLF more than a https://www.d-ushop.com/forum/topic/84914/gold-detector-in-caves-and-underground-rivers