>I think we need some more information first. What is the range of temperatures/pressures you need to measure? What is the desired resolution/accuracy for these measurements?

Well,
The range of the temperature is from 0 to 1200 degrees. That is, the input will be the normal air temperature and the exaust temperature will be 800 to 1200 degrees (I guess). The precision is not so important. Because at the moment there is no information at all during the 10 seconds of the 'run'.. Lets say a precision withing 5% to 10% is enough. The input pressure of the air is about 2 bar and the oil pressure can be 5 bar. No extreme values I think.

Hope this information is better.