PRC20-NIST / Extech Microprocessor Calibrator/Thermometer, includes Traceable Certificate Source and measure 8 thermocouple type devices (J, K, T, E, C, R, S and N).
PRC15-NIST / Extech Current & Voltage Calibrator, 0 to 24mA, includes Traceable Certificate 0 to 24mA (-25 to 125%) readout.0 to 20V DC calibration source.
PRC10-NIST / Extech Current Calibrator with NIST 24V DC power source for 2-wire current loop.Up to five user adjustable calibration presets.Palm-sized double molded housing and large dot-matrix digital backlit LCD.