I believe that this is a concern with instruments using a thermocouple.
  Not so much with a thermistor.

Larry A.

On Thu, Feb 25, 2010 at 7:45 PM, Loren Busch <starwagen@gmail.com> wrote:
> �RE: Remote Thermometers
> One thing to keep in mind with such thermometers with external probes. �You
> can't shorten the length of the probe wire without throwing the thing out of
> calibration. �The probe is a thermistor and the reading depends on the
> resistance in the whole probe circuit including the wire in the lead to the
> probe. �How much effect changing the length of the wire would have I don't
> know but I do know that the wire is part of the circuit.
>