I have no way of knowing how much fuel is in my PPC tank unless I lean around and look or time it.  I don’t like leaning out that far in the PPC when I’m flying, strapped in or not.  I came up with another solution:

It’s just a clamp-on mirror I bought off Amazon (Click here to save you some searching time).  I discarded the clamp that came with it and used a spare adel clamp I had on hand. I had to drill out the holes in the clamp slightly larger than they were to accommodate the threaded portion of the mirror.  I used a little electrical tape to prevent the steel clamp from scratching the frame.

Now I have a wireless, probeless, fuel gauge that takes absolutely no power to run!