PT100 sensor - help a beginner?

I might try putting the PTs I have into service, and I will be interested in hearing how you go. The dumb thing is that they are already installed in my equipment but they are just serving as screw-in plug!

If you plan on several, you might want to make up proto shield for them. This is by far the best deal on shields I have seen, and should bve very suitable. The headers have long pins.

http://www.ebay.com.au/itm/390544897854?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649