VLF stands for Incredibly Small Frequency and is similar engineering Employed in detectors designed for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Here i will discuss five main reasons why you may choose a VLF over a PI https://www.nongkhaempolice.com/forum/topic/70722/gold-detector-tips-from-the-pros