AC/DC Voltage Measurements Accuracy Range: 600.0 V Resolution: 0.1 V 50 Hz to 400 Hz ± (% of Rdg + Digits): ±(2 % + 3) Input Impedance 3 MΩ (nominal), Common mode rejection ratio (1 kΩ unbalanced) > 60 dB at dc, 50 or 60 Hz Overload Protection 600 ...