main features：

ET521S 是最新的示波表

main features：

啊啊啊啊啊啊啊•One key transform to waveform
•DSO Trigger mode: Auto/normal/single
•DSO Auto measure: Vpp, Vavg, Vrms, dBm
•DSO Cursor readout: dV, dt, 1/dt (frequency)
•Screen hold function
•Save and recall up to 100 waveform and data
•Auto power off in 5~60min or continuous

main features：

•Automatic waveform capture function
•Software calibration technology, memory calibration coefficients
•128X64 high contrast LCD with LED back lighting.
•Built-in 500V / 20A explosion proof fuse.
•10 waveform and 100 data storage

main features：

•Digital storage oscilloscope(DSO) with 80M sampling/20MHz analog bandwidth
•DSO one-key display measuring waveform automatically
•Calibration technique, inner calibration factor design