VLF means Very Very low Frequency and is the same know-how Employed in detectors created for cash, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Here's five reasons why you could possibly decide on a VLF above a PI The https://www.pathumratjotun.com/forum/topic/129727/metal-detector-accessories-that-boost-your-success