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|Manufacturer name||Good Will Instrument|
|Country of origin||China|
|GW Instek GDM-397 3-3/4 Digits LCD Digital Display Handheld Multimeter with RS-232C Interface, 40mV/400mV/4V/40V/400V/750V AC Voltage Range
The GDM-300/400 Series Hand Held DMM are a compact, high precision, battery operated multimeter series designed to meet most of the daily needs for design engineers as well as service engineers. The GDM-300/400 series design is driven by mobile-oriented features, such as automatic power down to preserve battery life, a large backlight display for crisp viewing, a rotary selector switch and clear-cut push buttons to ease operation. The basic functions match the depth of bench-top multimeters: fuse-protected current input, true RMS for accurate AC measurements, Auto ranging, Duty cycle, and Relative mode. These compact, reliable, and economical devices are ideal for any engineer.