VLF stands for Very Very low Frequency and is similar engineering Utilized in detectors developed for cash, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Allow me to share 5 explanations why you might select a VLF above a PI https://webhitlist.com/profiles/blogs/metal-and-gold-detectors-for-treasure-hunters