None of these guys thought to bring their own thermometer. Jed Rothwell was invited to a Rossi demo, and when Rossi saw that he was going to bring his own tools he uninvited Jed. I find it incredible that over these last 8 years not one of these guys brought their own thermometer to the party.
Celani brought a Geiger counter and got roundly scolded by Rossi when Gammas were present, because that would quickly have pointed to which reaction was taking place. Someone thought to bring a Geiger counter, but not a thermometer. It just defies gravity in terms of common sense.
 " I find it incredible that over these last 8 years not one of these guys brought their own thermometer to the party." Not true ... at least initially. See my Experiment Table
For the initial Jan 2011 demonstration Rossi set up the system with his own instrumentation, and Levi invited the Bologna "evaluation team", who were permitted to bring ANYTHING except a radiation spectrometer. (And the start-up gamma burst is a strong indication that Rossi had something real).
For subsequent evaluations there was again NO restriction. However Essen and Kullander brought no instruments of their own. (Lewan brought his).
In particular, for his own experiments, Lewan was allowed to bring anything for calorimetry, and in fact callibrated the meters he did bring. (The True vs RMS metering issue was only discovered later.) Rossi provided Lewan with a steam trap, and the ability to Sparge.
It was only for the Oct 6, 2011 Heat Exchanger test that Rossi set up the heat exchanger and thermocouples (dis-assembling them at the end). Again, Lewan brought instruments and was allowed to use them. As I pointed out the placement of the thermocouples was bad (though an attempted thermal simulation was inconclusive).
The visit by Krivitt (who had a BIG chip on his shoulder) was specifically a demonstration only.) I don't have enough information to comment on the Rothwell invitation.