100MHz digital readout oscilloscope: 1.dual channel/four trace 2.digital reaout/memory function 3.imported CRT,sweep ... MCH Digital Readout Oscilloscope, OS-3100G 100MHz Oscilloscope, dual channel/four traces:Specifications: DescriptionOS-3100G 100MHz digital readout analogue oscilloscopeDivision line6 ... . OS-3100G Oscilloscope,100MHz frequency Digital Readout Oscilloscope,dual channel four traces