ISDS205A dual-channel digital oscilloscope, with "low-cost, high-performance" as the design goals. well-designed bandwidth of 20M, 48M sampling rate, 2 channels, alternating support X, Y and XY alternating pattern of two-channel virtual oscilloscope, spectrum analyzer, data recorder. The device communicate with the PC via high speed USB2.0. Portable: Ultra small size, equivalent to a 3.5 inch mobile hard disk size, can be put to computer bag directly, convenient for traveling and teaching. No Extra Power Cord Needed: USB port provide power to the oscilloscope, can be used anywhere and anytime. Software support: Windows 7, Windows NT, Windows 2000, Windows XP, VISTA. Application: Vehicle maintenance, Ignition device waveform detection; Electrical maintenance, electrical signal measurement, signal comparison; Mobile phone repair, electronic component signal detection; Research and teaching, research and development, debugging of embedded systems.