Now i see what you mean.

I did not knew this.
Sensor reaches 200ºC ??? wow...and now i undestand why you recomended NTCs.
But this is a failsafe unit.

I know this one instead:
http://www.rcmodels.org/csm/carbsmart.pdf
I believe it's by far the best idea.

Apart from these 2...
My circuit is not like any of these.
It just stores the values, nothing else.

.