... 5,Sample rate:Max up to 250MS/s Portable Digital Storage Oscilloscope PDS5022T Oscilloscope Specification Model ... *reading+0.4ns) Waveform storage 4 waveforms Cursor measurement ΔV and ΔT between cursors Line/field frequency ... Trigger level ±6 divisions from screen center Automatic measurement Vpp,Vavg,RMS,Frequency,Period,Vmax,Vmin,Vtop,Vbase ... , T grade, 250V O/s Portable Digital Storage Oscilloscope