... .two groups of reference waveform. 25MHZ 2CH digital oscilloscope:Features and advantages:1. Up to 200MHz ... , USB Host, RS-232, Pass/Fail8. Unique digital filter and data recorder function9. Embedded 12 languages, ... oscilloscope, extraction waveform analysis dataRemarkWith original source seamless connection, form signal collection, produce integration system Digital Storage Oscilloscope SDS1022DL