20018975-20
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33154356-20018975-20
Precision Thermometer, Thermometer & Probe System, -20 – 130°C Accuracy T_Range, ± .05°C Sensor Accuracy, Probe Length 57.15 mm [2.25 in]
The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter “alpha” (α). A positive coefficient for a material means that its resistance increases with an increase in temperature.
Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance. A gold tolerance band is 5% tolerance, silver is 10%, and no band at all would mean a 20% tolerance.