I have contacted the company that makes the TEMPer1 (pcsensor) and this is what they had to say:
"We can offer DLL for C#, but it is not free, its price is $15.00. If you need, Please tell me."
I don't know if that's of any use?
Ok cool. I'll try to collect together some resources for it then. Here is a link for the product.
http://www.ebay.co.uk/itm/200791894051?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649