V? th? l? tr? th??ng thì x? s? mi?n Nam v?n gi?ng nh? XSMT và XSMB, c? th? nh? sau:123B/124B/125B End users Handbook The readout displays the voltage difference between the Cursor Measurements two cursors and also the voltages with the cursors in relation to Cursors assist you to make precise digital measurements the zero icon (-). on waveforms.