Thermocouple Types K

 Type K Temperature Range:

        Thermocouple grade wire, –454 to 2,300F (–270 to 1260C)

        Extension wire, 32 to 392F (0 to 200C)

        Standard: +/- 2.2C or +/- .75%

        Special Limits of Error: +/- 1.1C or 0.4%

Thermocouple Types R

Type R Temperature Range:

       Thermocouple grade wire, -58 to 2700F (-50 to 1480C)

        Extension wire, 32 to 392F (0 to 200C)

        Standard: +/- 1.5C or +/- .25%

        Special Limits of Error: +/- 0.6C or 0.1%