Hi
Let's put my two cents : you can easily implement PID control in Labview (some are already done) so you need to get these parameters for your TE device. Anyway, to use a thermoelectric you will need at least two additional things :
1. a thermocouple or other temperpeure measuring device (it depends mostly on the temperature range.. for low temperatures -I mean really low.. few K to RT- you can use a Cernox (a kind of rolls-royce) or a Pt-100; or a T thermocouple... For higher (around RT try a thermistor; at higher T use a K thermocouple)
2. a current (or voltage) source which you can control to adapt the temperature
ask if you need more info
regards
