/challenges-projects/design-challenges/experimenting-with-thermal-switches/b/challenge-blog/posts/3d-printer-thermal-runaway-thermistor-tester-5---activation-of-a-fan-with-a-ohd1-30b-thermal-sensorTable of Contents Project Introduction Testing the OHD1-50B Thermal Sensor Testing the OHD1-50B and M-TRS5-60B Thermal Sensors Detecting Transition From ON to OFF on Thermal Sensors Activation of a Fan with a OHD1-30B Thermal Sensor Cuttingen-USTelligent Community 12