digital panel meters, measurement accuracy. DIGITAL PANEL METERSITEM NOITEM NAMEMEASUREMENT RANGEACCYRACYRESOLUTIONFREQUENCY TC2330DCV3 1/2 DC digital voltmeter20mV, ,200mV, 2V, 20V, 200V ... V, 1mV, 10mV, 100mV, 1V40Hz-20KHz TC2340ACV4 1/2 AC digital voltmeter200mV, ,2V, 20V, 200V, 400V ±0.4% ... 100μV, 1mV, 10mV, 100mV40Hz-20KHz TC2330CACI3 1/2 AC digital ampermeter2mA, 20mA, 200mA, 2A, 10A ±0.8% ...