I started dowsing in 2003, and purchased a prescious mineral molecular Resonator, brand Omnirange master, which came with L-rods, basic istruction how to use the, and a 2 page list of frequency numbers, the inventor figured out. It was simple, had a little 12volt battery, it was portable. It was a frequency generator or signal generator. It displayed only, kHz, in the Sine wave. You could change the amplitude strength, and it only had a 3 digit screen. As far as understanding it, a signal…