192 Series, Uni-Curve with bare leads and epoxy, 10,000 Ohm resistance, ±0,5 °C [0.9 °F] tolerance, 25/85 BETA = 3974 192 Series Thermistors are high quality, low-cost, resistance temperature-matched interchangeable units. They offer additional cost savings by eliminating the need for individual resistance temperature calibration, as well as standardization of circuit components and simplification of design and replacement problems.