... USB Oscilloscope, DS-2025CA Digital Oscilloscope, 25MHz freq. ,dual channelSpecifications: SpecificationsDS-2025CAChannels2+Ext.TriggerBandwidth25MHzRising time13.8nsTime base5ns to 50s ... 01%Vertical sensitivity2 mV/div to 5V/divVertical resolution8bitMax. input voltage400V(DC+AC peak),5Vrms@50ΩAuto measurementsVpp, Vamp, ... notice. 25Mhz DS-2025CA USB digital Oscilloscope dual channel 25MHz freq.,