VLF means Very Small Frequency and is similar technologies used in detectors designed for cash, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from three kHz to 70 kHz. Allow me to share 5 reasons why you could possibly pick a VLF about a PI Together https://kafeelansari111.blogspot.com/2026/01/gold-detector-with-advanced-processing.html