USB Oscilloscope: 1.25MHz bandwidth, max.250MHz 2.500Ms ... .with USB interface MCH USB Oscilloscope, DS-2025CA Digital Oscilloscope, 25MHz freq. ,dual channelSpecifications: SpecificationsDS-2025CAChannels2 ... modesAuto, normal, singleTrigger sourcesCH1, CH2, Ext, Ext/5, Ext(50Ω)Horizontal accuracy±0.01%Vertical sensitivity2 mV/div ... -2025CA USB Oscilloscope, 25MHz freq.,dual channel digital oscilloscope