temperature sensor search

Experiment #2 lead me to wanting:

1. a larger scale testing field (site) to examine a larger scale of temperature differences.

2. an exterior body (not my body) to examine skin temperature so I am not in control of temperature variation (as I was at some degree in control of the temperature changes when conducting the yoga activity myself).

4. more accurate measurement recordings, and more accurate measurement method on a specific time scale.

5. a more accurate visual temperature mapping. (more precise than the scaled color-coded drawing layers I did for experiment #2)

Accuracy Is what is crucial here in a temperature measurement method.

The liquid crystals change color with change in temperature, but it is difficult to map out an accurate temperature/time.

With small temperature sensors, thermistors, typically used for thermostats, the temperature accuracy can read +-0.01C, and the temperature range is ~-40 to 100C.

I want to contact the thermistors at different parts of a body to record skin temperature. The body will be a dancing body, so the skin temperature will rise and fall, depending on time and movement and other environmental factors.

I want to connect these thermistors to an Arduino board with an XBEE (wireless adaptor) so I can feed and record the temperature information from the thermistors to a wireless source (computer). Once I get all the temperature information I can map out in time, the temperatures of the skin in space.

I am currently searching for the thermistors which will have high resolution, lower cost, a low response time (time it takes for sensors to sense a temperature change on contact with skin), a resistance around 10-100k, and a temperature range from ~OC to 50C.