Showed the device to my neighbor lady's son that is my age.
He works on and builds huge RO systems for chicken houses and so on and does the same thing for the High Tech industry because they have to have clean pure water to wash product.
Much of this involves automation of valves and so forth which includes wires.
When I showed him how it worked his eyes bugged out and exclaimed man I sure could have used that a few times, it would have saved hours of tracing wires and trouble shooting.
He asked me how far they would trace out a wire.
I said about ten miles.
His expression.
These things run way up in price if you get them from a place that specializes in electronics like ADI and so on.
I got mine at Lowes in the telephone cable and electronic section for 72 bucks.
Not to be confused with the electrical section.