This module has bright LED display and is compact in size. It operates on 5V DC supply.   SPECIFICATIONS  Display  14.2mm (0.56") height, Bright Red LED Display   (1999 max display)  Measuring Method  31/2 digit-Dual Slope A/D conversion  Sampling time  0.4 Sec (2.5 samples per second)  Polarity  '-' is displayed for negative input  Decimal Selection  Simple user friendly  Over Range  "1" or "-1" is indicated  Operating conditions  0-50° C, 70% RH (non-condensing)  Storage conditions  -10°-70°C, 85% RH (non-condensing)  RANGES  DC Voltage/Current 0-200mV, 0-2V, 0-20V,  0-200V, 0-200µA, 0-2mA, 0-20mA, 0-200mA  Accuracy  (27°± 5°C) ± 0.5% of Range  Auxiliary supply  5VDC + 10% (1VA)  Ensure proper polarity of power supply Note : Power supply ground and input IN LO signal must not be shorted. When using with a shunt, one end of the shunt must be connected to ground side of the supply and not the high voltage side of the supply.