Hi,
Analog Devices make a current-based temperature probe called the AD590.
It takes a bit of signal conditioning at the processor side, but you can run the sensor for a hundred feet on a twisted pair. It comes in a small 3-pin package (ideal for heat-shrinking) and is highly resistant to noise.
Here are some links:
http://www.picbasic.org/forum/showth...ighlight=AD590
http://www.picbasic.co.uk/forum/show...ighlight=AD590
http://list.picbasic.com/forum/messages/5820/6521.html?
Good luck!
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