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The Clarke Hess 255 digital V-A-W meter provides TRUE RMS measurements of Voltage, Current, and Power. These measurements are essentially independent of the wave shape and of the power factor from DC up to frequencies of hundreds of kilohertz. Voltage and current readings are typically within 1% to 400 kHz for sine waves. The power in a 100 kHz square wave may normally be measured within 2%.
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Download Clarke-Hess 255 Datasheet
