digital panel meters, measurement accuracy. DIGITAL PANEL METERSITEM NOITEM NAMEMEASUREMENT RANGEACCYRACYRESOLUTIONFREQUENCY TC2330DCV3 1/2 DC digital voltmeter20mV, ,200mV, 2V, 20V, 200V ±0.1 ... , 10mV, 100mV, 1V40Hz-20KHz TC2340RMS4 1/2 AC RMS digital voltmeter200mV, ,2V, 20V, 200V, 400V ±0.4% ... 1mV, 10mV, 100mV, 1V TC2340ADCV4 1/2 auto-range digital voltmeter20mV, ,200mV, 2V, 20V, 200V, 1000V ±0. ...