Thanks Robin, The temperature sensor is the one that was provided with DrDAQ, so I presume it must be the themistor. The sonsor works without the extension, but as I add cable lengths, the answer becomes more strange. For example, with an additional 10 ft, the temperature is about 80 degress off, th...

I wanted to measure the temperature at different pints in my house, but when I use an extension to the thermocouple line, I get screwy readings, like ******. Is there a limit to the cable length? If so, is there any other trick around it so I can measure temperatures at long distance?

Thanks