MS420: 20MHz 2-Channel Digital Oscilloscope Dual-channel Oscilloscope with 3.8" (97mm) color LCD display Features: Auto-set function optimizes the position, range, timebase, and triggering to assure a stable display of waveforms Peak Detect function for 50ns glitch capture XY Mode and FFT function to view component frequencies Twenty Automatic Measurements including Frequency, Cycle, Average, Peak to Peak, RMS and more Waveform Math: Add, Subtract, Multiply, and Divide Average Mode for smoothing waveforms Persistence Mode for observing dynamic signals Store and recall up to 4 waveform screens and setups USB interface and software for transferring waveforms and data For complete specs please download the product datasheet (not available for some accessories)