Designed for the military, this beefed up version of the 332D DC Voltage Calibrator is an excellent choice for DC Standard requirements. Performance, accuracy, and reliability is built into this standard with special military shielding requirements which greatly reduces noise problems. Maximum range of 1100 V at 50 mA. Seven in-line decade switches provide 0.1 ppm resolution. Accuracy of 0.001% and stability of 0.0005% per month. Overcurrent and overvoltage protection.