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Multi-functional digital alternating and direct current crest voltmeter YJ

The digital mains frequency crest voltmeter is tested for the direct-flow upper voltage, ge that is designed of high-voltage test of mains frequency. Technological characteristic: The negative polarity direct-current volts straight in measurable quantity of this instrument, exchanges the crest value of the sine-wave voltage, crest value / 2,Rms value ( Available) . In order […]

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