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The GW Instek GDM-8145 Multimeter with 3 1/2 digits, 0.5" LED display in a distinctive red color measures DC Voltage/Current, AC Voltage/Current with true RMS, Resistance and Diode Test. The true RMS AC and AC+DC response give accurate measurements for equivalent DC energy regardless of the waveform shape. Small voltage offsets are canceled by the auto-zero circuit, and protection mechanisms are available for the entire measurement range. Specifications. DC Voltage range: 200 mV, 2 V, 20 V, 200 V, 1000 V. DC Voltage range accuracy: ±(0.03% of reading + 4 digits). AC Voltage Range (AC or AC + DC True RMS): 200 mV, 2 V, 20 V, 200 V, 1000 V. DC Current range: 200 µA, 2 mA, 20 mA, 200 mA, 2 A, 20 A. DC Current Accuracy: 200 µA to 200 mA ±(0.2% of reading + 2 digits), 2 A to 20 A ±(0.3% of reading + 2 digits). AC Current range: 200 µA, 2 mA, 20 mA, 200 mA, 2 A, 20 A. Resistance Range: 200 ohm, 2 K, 20 K, 200 K-ohm, 2 M, 20 M-ohm. Diode Test Current: Max. 1 mA. Diode Test Open Voltage: Max. 13V.
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