Features:This product is double channel design, USB isolation PC digital storage Oscilloscope 25MHz bandwidth, and 100MSa/s sample rate.With channel isolation function.The VDS1022I PC Oscilloscope features 5K record length.Friendly UI design: FFT, or X-Y, and waveform 2 views displayed on the same screen.Multi-trigger option :edge, video, slope, pulse, and alternate USB bus powering.Ultra-thin body design, easy to carry.Specifications:ModelVDS1022IBandwidth25MHZChannel2+1 (multi)Sample Rate100MSa/sHorizontal Scale (s/div)5ns/div~100s/div, step by 1~2~5Rise Time14 nsRecord Length5KInput CouplingDC, AC, GNDInput Impedance1M2%, in parallel with10pF5pFChannels Isolation50Hz : 100 : 1, 10MHz : 40 : 1Max Input Voltage400V (PK - PK) (DC+AC, PK - PK)DC Gain Accuracy3%DC AccuracyAverage16: (3% reading + 0.05div) for TriangleTProbe Attenuation Factor1X, 10X, 100X, 1000XLF Respond (AC, -3dB)5Hz (at input, AC coupling, -3dB)Sampling Rate / Relay Time Accuracy150psInterpolationsin(x) /xInterval (TriangleT) Accuracy(full bandwidth)Single: (1 interval time + 100ppm x reading + 0.6ns), Average >16: (1 interval time +100ppm x reading + 0.4ns)Vertical Resolution (A/D)8 bits (2 channels simultaneously)ModelVDS1022IVertical Sensitivity5mV/div~5V/divTrigger TypeEdge, Pulse, Video, Slope, AlternateTrigger ModeAuto, Normal, SingleTrigger Level5 divisions from screen centerAcquisition ModeSample, Peak Detect, and AverageLine / Field Frequency (video)NTSC, PAL, and SECAM standardCursor MeasurementTriangleV, and TriangleT between cursorsAutomatic MeasurementVpp, Vmax, Vmin, Vtop, Vbase, Vamp, Vavg, Vrms, Overshoot, Preshoot, Freq, Period, RiseTime, Fall Time, Delay A to B , Delay A to B , +Width, -Width, +Duty, -DutyWaveform Math+, -, x, /, invert, FFTLissajous FigureBandwidthfull bandwidthPhase Difference3 degreesCommunication InterfaceUSB 2.0Multi-function InterfaceSignal TypeTTLLevel StandardPower Supply5.0V/1APower Consumption1.5WDimensionsApprox. 170 x 120x18 (mm) / 6.69 x 4.72 x 0.7inWeight721gPackage included:1 x PC Oscilloscope2 x Probe1 x USB cable1 x CD1 x Manual1 x Adjust tool 2 x Tip locating sleeve4 x Color circle2 x Ground springNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..