... or special keyboard.2. Program controlled power source, high precision reference standard meter.3. Output voltage and current ... be set freely under manual calibration.5. Output voltage and current signal can be set according ... portable.Index:1.Accuracy class: 0.05, 0.1.2.Output voltage: 60, 100, 220, 380, 0-120% ... range can be continually adjusted.3.Output current: 0.1A, 0.5A, 1A, 2.5A, 5A, 10A, 20A, ...