Advanced Assembled Finished Machine visually show the change curve of the test signal. 2 in 1 Handheld Oscilloscope Multimeter adopt dedicated chip, with 2.5Msps high-speed A/D data collecting, high sampling rate and high bandwidth, one-key transform to waveform function measuring. The software calibration technology, memory calibration coefficients. Measure more accurately. Auto shutdown, double protective tube, distortion detection protects your device safety.