Specification Fluke 54 II BTemperature accuracyAbove -100 °C: J, K, T, E, and N-type: ±[0.05% + 0.3°C] R and S-type: ±[0.05% + 0.4°C] Below -100 °C: J, K, E, and N-types: ±[0.20% + 0.3°C] T-type: ±[0.50% + 0.3°C]TemperatureJ-type: -210 °C to 1200 °C ...