Thermocouple size

[Dave11420]

I need to measure temperatures in a 2-3mm OD tube, using thermocouples. Does anyone know where I can find a thermocouple that small.

I already know that there are thermistors of that size, but I prefer to use a thermocouple, preferrably flexible.

[johnsold]

Omega Engineering has thermocouples as small as .076mm. http://www.omega.com/ppt/pptsc.asp?ref=T5R_T3R&Nav=tema02

Lynn