The oscilloscope is designed according to the research, production,debugging and repair requirements of many electronic engineers.In contrast t traditional oscilloscope,this oscilloscope is equipped with a built-in lithium battery and can work without extemal power supply,so it is convenient for carrying,especially for field applicationlIt has three trigger modes-Auto,Normal and Single.You can lock and save the waveform of a non-periodical signal which a traditional oscilloscope can not capture.