... eliminate residual reading2W and 4W resistance measurement modes selectableBuilt-in mathematics calculation functions: mX+b, %, dB, dBm512 ... functionMeasurement parametersDC voltage, AC voltage, DC current, AC current,2-wire resistance, 4-wire resistance, frequency, period, continuity ... refer to the operation manual for other details. bench type multimeter 120000 digits VA82 5 1/2digits V&A multimeter