Feature: 1. 3 in 1 Design with IPS Screen: This product integrates digital oscilloscope, multimeter, and signal generator into one device. 3.2in clear IPS display screen, high sensitivity full view display, channel 2 waveform can be set to green, cyan, purple. 2. Signal Generator: Built in waveform signal generator, capable of outputting sine wave, square wave, triangular wave, etc. The voltage amplitude is 2.5V, the frequency is adjustable between 0‑2Mhz, and the square wave duty cycle is adjustable between 1% and 99%. 3. High Accuracy Multimeter: Built in true effective value multimeter, supporting software rapid calibration. Able to test DC AC voltage, DC AC current, resistance, capacitance, diode, and on off. When measuring low voltage, resistance, continuity, the oscilloscope and multimeter functions can be used simultaneously. 4. Digital Oscilloscope: Dual channel oscilloscope, with a bandwidth of 120MHz, and a dual channel mode bandwidth halved to 60Mhz. The sampling rate is 250MSa/s. With perfect triggering function of automatic, single shot, normal. Support sensitivity and time base adjustment, automatic mode adjustment, dual channel waveform analysis, cursor measurement, reference waveform, FFT spectrum, reference waveform, waveform saving and viewing. Equipped with dual channel mode, it can simultaneously measure and display two signal waveforms for waveform comparison and analysis. 5. Sensitivity and Time Base: The oscilloscope will automatically detect the signal and adjust the range. Support manual adjustment of waveforms in both vertical and horizontal directions. Vertical sensitivity represents the voltage in the vertical direction, which is adjusted by the mV and V buttons to adapt to different voltages. The time base represents the time in the horizontal direction. Adjustments can be made through the S and NS buttons to adapt to different frequencies. In stop mode, the user can move the waveform left and right. 6. Two Automatic Adjustment Modes: Supports one button automatic and full automatic modes, allowing for quick detection and display of waveforms without complex operations. In fully automatic mode, continuous automatic operation can be achieved without buttons. The XY mode is an imaging system formed by combining the waveforms of two channels, commonly used to display the phase difference or frequency relationship between two signals. Supports X and Y cursor measurements. 7. Other Functions: FFT is an algorithm that transforms time domain waveforms into frequency domains, which can be used to analyze the frequency components in waveforms. Supports linear and logarithmic displays. Supports locking reference waveforms, displaying the current waveform statically on the screen, while the dynamic waveform continues to update normally. And can be used for reference and comparison between multiple waveforms. Save the screen waveform with 1 click and enter the image browsing page. You can click on the thumbnail for full screen observation or delete unnecessary waveform images at will. Use an isolation transformer and isolation optocoupler chip to isolate the multimeter from the oscilloscope, so there is no need to worry about common ground wiring issues. When measuring high voltage, a multimeter and an oscilloscope cannot be used simultaneously. Specification: Item Type: Digital Oscilloscope Model: DSO3D12 Channel: 2 Screen Size: 3.2in Sampling Rate: 250MSa/s Bandwidth: 120Mhz Equivalent Sampling: 500M Rise Time: