The Extech PRC20 sources and measures eight thermocouple type devices (J, K, T, E, C, R, S and N) and provides precision output displayed as Centigrade/Fahrenheit or mV. It has five user adjustable calibration presets and a Type K temperature range of -58 to 2498 degrees F (-50 to 1370 degrees C). The Extech PRC20 is suitable for Lab and field calibration, Engineering research and design, Manufacturing and test engineering, Temperature control process troubleshooting and HVAC applications.