Unfortunately, our SoC (containing MPU - Main Processing Unit = what You refer to as CPU) doesn't have *any* temperature sensor - physical;y. All programs, that claim to monitor temperature of MPU, are in fact using battery temperature, which is totally useless for over-clocking safety purposes.

It's so-called "snake oil" - false sense of being safe. IMO, such programs should get plentora of negative Q&A scores, but...

/Estel