VLF stands for Very Very low Frequency and is identical technological know-how Employed in detectors created for cash, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz starting from 3 kHz to 70 kHz. Here are five main reasons why you could decide on a VLF above a https://international.projectwet.org/discussion/metal-detector-challenges-tips-tough-soil