I apologize, I made a mistakeThe temperature? If there is no sensor (as I know), there is no chance to get the temperature. And actually, at least under OBH, there isn't even a plugin (that's an easier way to read such infos) for Solo4K If I'm not wrong, there was such a plugin for my Duo2, but I cannot check this at the moment.
I had the chance to check my theory on my dad's Duo2, where there is also installed OBH. And it's shows a "System temperature" without any plugins, just by MENU/Information. I was actually almost sure that BH for Duo2 had (at the time it was installed) a plugin to check temperatures.
Instead, my Solo4K hasn't and consequently there is no "System temperature" displayed under Info.
Now, System temperature is not CPU temperature but this shows that a temperature sensor is present in Duo2 whilst is not present in Solo4K.