3in1 Design, this product ingeniously integrates digital oscilloscope, multimeter and signal source functions into one device. Equipped with a 3.2-inch IPS display. With 120MHz bandwidth and 250MSa/s sampling rate. 3 Trigger modes have been developed: automatic, single and normal. Multifunctional design, supports sensitivity and time base adjustment, automatic mode adjustment, 2-channel waveform analysis, cursor measurement, reference waveforms, FFT spectrum, reference waveforms, waveform storage and view. With DC/AC voltage, DC/AC current, resistance, capacitance, diode and continuity test. Built-in waveform signal generator, can sine wave, rectangle wave, triangle wave etc. to spend. Properties: 3In1 Design with IPS Display: This product ingeniously integrates digital oscilloscope, multimeter and signal generator functions into one device. 3.2-inch IPS display with clear resolution, high sensitivity full screen display, channel 2 waveforms can be set to green/cyan/violet. Signal Generator: Built-in waveform signal generator, it can output sine wave, rectangle wave, triangle wave, and so on. The voltage amplitude is 2.5V, the frequency is adjustable from 0-2Mhz, and the rectangular wave tactile degree is adjustable from 1% to 99%. High precision multimeter: Built-in True RMS multimeter that supports fast software calibration. With DC/AC voltage, DC/AC current, resistance, capacitance, diode and continuity test. When measuring low voltage/resistance/continuity, the functions of the oscilloscope and the multimeter can be used simultaneously (small window in the upper right corner). Digital oscilloscope function: Two-channel oscilloscope function, with 120MHz bandwidth and 250MSa/s sampling rate. With perfect trigger function (automatic, single, normal). Supports sensitivity and time base adjustment, automatic mode adjustment, 2-channel waveform analysis, cursor measurement, reference waveforms, FFT spectrum, reference waveforms, waveform storage and view. Sensitivity and Time Base: The oscilloscope will automatically detect the signal and adjust the ranges. Supports manual adjustment of waveform in vertical and horizontal directions. The vertical sensitivity indicates the voltage in the vertical direction and is adjusted with the mV and V keys to adapt to different voltages. The time base represents the time in a horizontal direction. It is set with the S and NS buttons to accommodate different frequencies. In stop mode, the user can move the waveform left and right. Two Automatic Modes Adjustment: Supports one-button automatic and fully automatic mode, no complicated operation, you can quickly recognize and display the waveform. In fully automatic mode, no key presses are required, and continuous automation is performed. High Bandwidth Sampling Rate: The real-time sampling rate is 250MSa/s, the bandwidth in two-channel mode is halved to 60Mhz. Dual Channel: With dual channel mode that can measure and display two waveforms simultaneously for waveform comparison and analysis. X-Y mode for cursor measurement: X-Y mode is an image formed by combining the waveforms of two channels, and is commonly used to display the phase difference or frequency ratio between two signals. Supports X cursor and Y cursor measurement. For example, the horizontal cursor can be used to measure the interval time between two pulses. The vertical cursor can be used to measure the voltage and the voltage difference in two arbitrary places. FFT Spectrum: FFT (Fast Fourier Transform) is an algorithm that transforms waveforms in the time domain into the frequency domain, which can be used to analyze the frequency component in waveforms. Linear and logarithmic displays are supported. Note: FFT can only display spectrograms, frequency measurements are not supported. Reference waveform: Support for storing reference waveforms, static display of the current waveform on the screen, while the dynamic waveforms continue to be updated normally. And can be used for reference and comparison between multiple waveforms. Waveform Save/View: Save the waveform on the screen with one click, open the page to browse the image, click the preview image to view it in full screen mode, and delete the unwanted waveform card at will. Safer Design: Use a isolation transformer and optocoupler chip to isolate the multimeter from the oscilloscope, so you don't worry about a common ground