I do not like this graph on page 2:

http://www.22passi.it/pirelli/2%20layers%20constantan%20wire%20EDX%20and%20extra%20heat.pdf

There are no calibration points above 0.5 W input, and no live run data
points below that. You have to have calibration points at the same power
levels as the live run. There has to be overlap. If your highest input
power during the live run is 4.6 W (as shown here) you have input 4.6 W
during the calibration, or better yet 5 W.

I do not know what kind of calorimeter they are using, but I have seen many
with a non-linear response, especially at high temperatures. All of the
ones Mizuno used were like that. The calibration bends down at higher
temperatures. The aqua colored line says "Linear (no extra power)" but
there is no proof it would actually be linear.

I am not happy with this. I need more information to judge it, but it gives
me a bad feeling.

- Jed

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