Keysight Technologies 3458A Bench Digital Multimeter, True RMS, 1A ac Max, 1A dc Max, 1000V ac Max, True RMS: Yes, Functions Measured: AC Current, AC Voltage, DC Current, DC Voltage, Resistance, Absolute Maximum DC Voltage Measurement: 1000V dc, Maximum Frequency: 10MHz, AC Current Measurement Resolution: 100µA ac, Best AC Current Accuracy: 1 % Reading + 0.04 % Range, Best AC Voltage Accuracy: 20 % Reading + 0.08 % Range, Best DC Current Accuracy: 115 ppm Reading + 10 ppm Range, Best DC Voltage Accuracy: 14 ppm Reading + 3 ppm Range