MS7220 thermocouple Calibrator is a precise source and measurement tool for calibrating thermocouple instruments through a thermocouple mini jack. The Calibrator can be indicated in units of C, F, or mV. Selectable F or C. Display is 88888 Counts. Specific at ions: measure/simulate thermocouple range: -200 to 1800,depending on Type measure/simulate mV range: -10 to 75mV measure/simulate thermocouple resolution: 0.1 measure/simulate mV resolution: 0.01mV measure/simulate thermocouple accuracy: +-(0.3+10Uv) measure/simulate mV accuracy: +-0.02 percent note: 8 TC types. J K T E n R s b per NIST 175 and its-90 power: 9V 6F22 battery ( not include) item size: 19 * 8.5 * 4.5cm item weight: 410G package size: 26.5 * 19.2 * 9 cm package weight: 1171G package contents: 1x Mastech MS7220