Oscilloscope electronic teaching and training DIY kit

The shell oscilloscope is powered by 9V DC (the supply voltage should not exceed 10V! Otherwise it may burn the device). The kit itself does not contain a power supply. Users need to prepare the power supply by themselves, and the current of the power supply should be able to supply 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 manner)
Adjustable vertical shift, with instructions
Input impedance: 1MΩ
Maximum Input voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe)
Coupling methods: 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 display
Observe the waveform before the trigger (negative delay)
The waveform display can be frozen at any time (HOLD function)
With 1KHz /3.3V square wave as test signal source
With digital display of the waveform parameters, the following parameters can be displayed: frequency, period, Pulse width, duty cycle, maximum value, minimum value, average value, peak-to-peak value, RMS value
Save/recall the waveform, the waveform does not disappear when power off
Packing list:

15001K (SMD components have been welded ):
All parts of the cup oscilloscope, the chip components of the analog board have been welded and tested
BNC fish clip probe
Assembly instructions