Thermocouple Thermometer, Thermocouple, Number of Channels 2, Includes NIST-Traceable Certificate Yes, Accuracy +/-0.75 Percent +1 Degrees C, -50 Degrees to 1,999 Degrees F/-50 Degrees to 1,230 Degrees C (Thermocouple), (1) 9V, 3/4 in H x 2 7/8 in W...