The thermistor monitors temperature, and the Ubis 13S is designed to allow user replacement. Why would you replace your thermistor? Initially, a high-quality thermistor will be accurate to within 1%, but it will lose accuracy over time. As the process is affected by many factors during use, the rate of degradation is hard to predict. If you suspect your thermistor is degrading, insert a separate temperature probe into the heater core as though it was filament. Check your instrument’s readings against the thermistor’s. Replace when necessary.
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