I think that the sensor is under the black tape near the END of the pipe -- you can see the wire going under it -- which I estimated as 5 cm from the center.
I did my calculation before you posted that ... if Mario Masso used HIS sensor position that would increase the calculated error. ----- Original Message ----- > Two more pictures of the thermocouple (from user agoz on 22passi blog) > http://www.redmatica.com/media/Thermo1.jpg > http://www.redmatica.com/media/Thermo2.jpg > Another user on 22passi (Mario Massa) computed that the thermocouple > in that position could give a reading as higher as 5 deg C more then > the water temperature (given the thermal resistance of brass and of > the contact surface water-brass )
