Original post by: Dan Rock ,
Hi Peter, Yes you will need to modify your firmware in order to use our Thermistor, and also set the correct MIN and MAX temperatures so that the thermal runaway protection is working correctly. There are firmware guides to follow in regards to these modifications that can be found on the relevant HotEnd sections. We do not reccomend using 3rd party thermistors with our HotEnds, we would be unable to provide support in the event of any damage caused by doing so. There are several videos online that outline the firmware flashing process I would recommend searching for Thomas Sanladerer.