VLF stands for Incredibly Low Frequency and is similar engineering Employed in detectors developed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Here's five explanations why you could go with a VLF in excess of a PI The https://webhitlist.com/forum/topics/metal-detector-for-desert-and-rocky-areas