... level: ±6 divisions from screen centerTrigger mode:Auto, Normal, Single;Automatic measurement:Vpp, Vavg, RMS, Frequency, Period, Vmax, Vmin, Vtop, Vbase ... waveformsCommunication interface:USBPower supply: 100V-240V AC, 50Hz,CATFuse:1A , T class, 250V