VLF means Really Low Frequency and is identical technological innovation Employed in detectors designed for cash, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Here i will discuss five reasons why you may go with a VLF more than a https://linuxline.org/blogs/126127/Metal-Detector-for-Small-Nugget-Recovery