Of all the food thermometers available, thermocouples are able to read and display the final temperature the quickest between 2 to 5 seconds. The temperature results will be displayed on a digital panel. A thermocouple thermometers measures temperature at the junction of two fine wires found at the tip of the probe. Thermocouples used in scientific laboratories have very thin probes, similar to hypodermic needles, while others may have a thickness of 1/16 inch.
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