In message <9511280206.aa02498@punt-4.mail.demon.net> PICLIST@MITVMA.MIT.EDU
 writes:
> I'm trying to use the  PIC processors to detect temperature at a point.
> Unlike area or room thermometers, I want to take the temperature a spefic
> point (eg. water or body temperature).  Would anyone know of any sensors
> that would be suited for this?  I have thought of themiresistors and
> temperature ICs.  Are there anymore or better ones?  If not, which is better?
> Thanks in advance.
>
Hi,

You could try the Dallas Semiconductor DS1820 - a 3 lead device
that does the temp -> digital conversion for you.

It uses just one i/o pin for communication, requires no external
components and measures temperatures in the range -55 degC to
+125 degC in 0.5 degC increments. It also has under and over
temperature alarms.

Hope this helps,

Mike Watson
--
Mayes uk