Shell oscilloscope uses 9V DC power supply (the power supply voltage should not exceed 10V! Otherwise it may burn the machine). The kit itself does not include a power supply. Users need to prepare the power supply by themselves, and the power supply current should be able to provide more than 200mA. Characteristic index: The highest real-time sampling rate: 1Msps Precision: 12Bit Sampling buffer depth: 1024 bytes Analog bandwidth: 0-200KHz Vertical sensitivity: 5mV/Div – 20V/Div (in 1-2-5 way) Adjustable vertical displacement, with instructions Input impedance: 1MΩ Maximum input voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe) Coupling methods include DC/AC/GND Horizontal time base range: 10μs/Div – 50s/Div (increase by 1-2-5) With automatic, conventional and single trigger modes, it is convenient to capture instant waveforms Can be triggered by rising or falling edge Trigger level position is adjustable, with indication Observe the waveform before the trigger (negative delay) The waveform display can be frozen at any time (HOLD function) Comes with 1KHz /3.3V square wave test signal source With digital display of waveform parameters, the parameters that can be displayed are: frequency, period, pulse width, duty cycle, maximum value, minimum value, average value, peak-to-peak value, effective value Save/recall the waveform, the waveform does not disappear when turned off packing list: 15001K (SMD components have been welded): All parts of the shell oscilloscope, the analog board chip components have been welded and tested BNC fish clip probe Assembly instructions