Features:  Integrates Multiple Functions: digital storage oscilloscope, arbitrary function signal generator, high-precision multimeter, data recorder, frequency meter, FFT spectrum analyzer.  4-channel Digital Storage Oscilloscope: 1GSa/s high sampling rate, 8M large storage depth, 25MHz signal source; Edge, slope, pulse width, video, timeout and other triggers; Up to 42 measurement functions.  Function of Arbitrary Function Signal Generator: the highest output frequency reaches 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 Function: AC and DC voltage, current, resistance, capacitance, diode, on-off measurement. The multimeter has its own data recording function, which can monitor and record the changes of voltage, current, resistance and other data for a long time and generate a trend chart.  Suspension Foot, Hands-free: unique suspension foot design, free hands; It can be used and put at any time. It is anti falling and anti-seismic, sturdy and durable.  High Power and Long Endurance: built in high capacity detachable lithium battery, full power, which has long endurance and standby time.  Support Multiple Fast Charging Protocols: standard 18W charger for fast charging; The type-C interface is compatible with mobile phones and can share a set of charging equipment.  7 "TFT LCD Large Screen: super large touch screen, resolution up to 800*480, friendly and easy-to-use UI, good interaction experience.