Testing for Dirty Electrical Power

Hi,

Is there any suggestion on a device that can test for Dirty Electrical Power?

One that I have come across is the, "Greenwave Broadband EMI Dirty Electricity Meter" on amazon.

I wanted to see (if it's really even possible) how my electricity is doing and then using the same device on my power strip (Isotek Evo 3 Sirius) to see if there is any change or if I end up getting any other type power filtration in the future, I would want to see how much better or worse that is making everything, besides just audible differences.

If my thinking is incorrect, please let me know.

I'm just curious to see if a device could tell me.

Thanks