People commonly underestimate AM hand radios for Dirty Electricity (DE) detection
Basically because it looks a bit silly
Of course if you want to do it properly, you need an oscilloscope and thats 5,000 USD, clunky and complicated af to use
On the other hand for 30 bucks you get the below hand radio that will pick up DE harmonics very well
And it will do that NOT ONLY on the hot wire, but also on the neutral AND ground wires!
Thats a big deal, because because the other cheap tool to use for this is an EMI Line Meter (around 150 USD) which are useful, but they ONLY measure the hot wire
Ideally you have both a Line Meter (like the Stetzerizer Microsure Meter) and the AM hand radio