Product Description:    1. Multi-touch large screen with a resolution of 800*480, the UI is friendly and easy to use, and the interactive experience is good;     2. Standard 4 or 2 channel oscilloscope, the highest bandwidth is 250MHz, the highest sampling rate is 1GS/s, and the storage is 8M;     3. Provide a high-precision multimeter with functions such as data recording, storage, trend graphs, and statistical analysis;     4. The signal generator has a variety of built-in arbitrary waveforms, and the maximum output frequency is up to 25MHz;     5. One-key waveform storage, convenient and quick;     6. The design of hanging feet, multi-angle adjustment, anti-drop and shock resistance, can be used and placed at any time;     7. Built-in large-capacity lithium battery, abundant power, long-lasting battery life, standby for up to half a year;     8. Standard 18W charger, support Type-C fast charging, and can also share a set of charging equipment with mobile phones.           Integrate multiple functions     Digital storage oscilloscope, arbitrary function signal generator, high-precision multimeter, data recorder, frequency meter,      FFT spectrum analyzer.          Four-channel digital storage oscilloscope     Bandwidth up to 250MHz, high sampling rate of 1GS/s, large storage depth of 8M;     Edge, slope, pulse width, video, timeout and other triggers;     Up to 42 measurement functions.          Arbitrary function signal generator function     The highest output frequency is 25MHz, 12bit high resolution, 200MS/s high sampling rate;     Built-in a variety of arbitrary waves, support AM/FM modulation, output high-resistance and low-resistance can be switched.          Digital Multimeter Features     AC and DC voltage, current, resistance, capacitance, diode, on-off measurement;     The multimeter has its own data recording function, which can monitor and record data changes such as voltage, current, and resistance for a long time, and generate trend graphs or export.          Hanging feet, ready to use     Unique hanging foot design frees hands;     It can be used at any time, anti-drop and shock-resistant, and durable.               Large battery, long battery life     Built-in 10000mAh removable lithium battery;     Plenty of power, long battery life, and standby time of up to half a year.          Support a variety of fast charging protocols     Standard 18W charger, fast charging;     The Type-C interface is compatible with mobile phones and can share a set of charging equipment.