Real-time Tracking: DS802 can display the voltage waveforms of two independent channels via the real-time data collection. Portable Design: Lightweight and portable design, easy to carry. With USB 2.0 interface, it can be powered over USB connection, plug and play. Hardware Trigger Function: Single trigger can be carried out in all cases of sampling rate, and sporadic aperiodic signal can be analyzed. Waveform Storage: You can save the screen waveform as a text sample point data file. Take screenshots of the current software interface and the waveform window for later viewing and analysis. The waveform displayed on the screen can generate a print report by the print function at any time. FFT Frequency Domain Analysis: Real-time display of the amplitude-frequency curve of the fast Fourier transform of the current waveform data. Also it supports AC and DC coupling.