Im making a Gas/Steam power plant, and im trying to make a cooling light meaning it comes on when the cooler is to cold, im trying to use ptct, and im connecting the ptct to my cooler (dmnd) so when the temp gets cold it cools the ptct and makes it conduct, but i need it to come on when the dmnd reaches below a range of around 10-20c. I have been trying to heat the ptct with diff stuff so its harder to cool. If anyone has a better idea please tell me! Thanks
OR if anyone has a whole new concept for a TOO COLD light to come on, would be amazing!