The Triplett PCAL100-NIST Multifunction Process Calibrator is a device that combines voltage, resistance, and temperature process functions in one unit for a wide range of industrial applications. This unit comes with a certificate of traceability to NIST that proves this unit matches the standards established by NIST. This unit features source and measure accuracy up to 0.05%, 2-, 3- and 4-wire resistance and thermal resistance (RTD) measurement. This unit can also measure and source 11 Thermocouple, plus 5 RTD types. Additional features include adjustable temperature compensation, built-in flashlight, and auto power off to conserve battery life.