hey thanks,
The cable isn't going to be that long maybe 1to2 feet. We have to build with the thought that the sensor would be remote and the display will be somewhere else getting the reading. But we decided to use a cable instead of wireless transmission because we haven't got that topic yet @ school. But it would have been gr8t to do have it.
And about bring the range to -27'C to 150'C is it necessary? Because here in the netherlands the temp doesnt reach below the -15'C lets say so we choose those values, but if the sensor reads untill -55'C i wouldnt mine as long as my range(-15'C to 45'C) is displayed.