Highlights:      Compact size, easy to carry, and flexible operation; The function button menu interface is clear andintuitive, with a 3.5-inch lPS full view color screen and a multimeter display of 6000 words; This productcombines oscilloscope, signal generator, and multimeter functions into one; Superior performance.powerful functionality, and can be used in various measurement scenarios to meet more measurementneeds of users. Product parameters Display:  3.5inch PP1:320*240 Bandwidth: 250kHz Sampling rate: 2.5MS/s Time base：10us/Div-50s/Div Vertical sensitivity:50S /div~10nS / div Voltage range：10mV/Div-20V/Div Trigger mode：1M ohm Trigger type:  Auto / Normal / Single Maximum test voltage： Rising Edge / Falling edge Coupling method:DC/AC Calibration Square.Frequency: 1K; Duty Cycle: 50% USB charging: 5V/1A Size: 103x73x25mm Lithium battery capacity: 400mAh