s Signal Source Calibrator Features: 1 output of the basic accuracy of 0.02%, the output is displayed as 6 2 output function: DC voltage, DC current, Ohm, analog transmitter, thermocouple, RTD, frequency, pulse, switch 3 DC current output, can provide 25% and 100% of the manual step, automatic stepping and automatic ramp output 4 thermocouple output, can provide high-precision automatic cold junction compensation, & 8451; or & 8457; temperature display 5 can be equipped with high-precision temperature probe, accuracy: ± 0.2 & 8451; 6 large screen LCD multiple data display, can simultaneously display: DC current and% value, thermocouple, thermal resistance temperature value and its corresponding index value 7 operating performance superior keyboard configuration, output set up and down keys and LCD display settings corresponding to the bit 8 panel calibration technology, without having to open the case can be calibrated 9 with white LED backlight, with automatic backlight off and automatic power off, suitable for field use Specifications: Notes:the package not included batteries Pictures for reference only.