... 3.2channle, color display 4.with USB interface MCH USB Oscilloscope, DS-2025CA Digital Oscilloscope, 25MHz freq. ,dual channelSpecifications: SpecificationsDS-2025CAChannels2+Ext.TriggerBandwidth25MHzRising ... %Vertical sensitivity2 mV/div to 5V/divVertical resolution8bitMax. input voltage400V(DC+AC peak),5Vrms@50ΩAuto measurementsVpp, Vamp, Vrms, Vmin, Vtop ...