I am looking at designing a simple project which will simply sample the temperature and store the maximum temperature reached as well as the average. What do people recommend for temperature sensors (please also give a place where I can buy them in low quantity. ( < 10)) Would you use a thermoresistor hooked to a PIC that had an on-board A/D or would you use a Dallas (or equivalent) digital sensor? I only need approximate (2 degrees or so) and it is to put on top of a roof. (The rest of the circuitry besides the sensor will be kept inside their specs.) Thanks in advance, Alan G. Smith +--------------------------------------------------------- | Alan G. Smith | ags@poboxes.com | http://www.innovatus.com/ags