Dual Channel Handheld Digital Storage Oscilloscope has external trigger and bandwidth of 60MHz.This Digital Storage Oscilloscope has maximum 6000 record length for each channel. Dual Channel Handheld Digital Storage Oscilloscope is designed by Amp Tronics Amp Tronics also develops custom solutions based on advanced technologies which include silicon, embedded hardware and software to full system platforms. The Dual Channel Handheld Digital Storage Oscilloscope, Model HDS2062M-N, has auto scale and waveform mathematic function. This Digital Storage Oscilloscope has 3, 7 inches color LCD display for large view.