Please be kindly noted，the listed product is produced and distributed abroad and subject to the laws of its country of origin。    Features:  With automatic, regular and one-shot mode, easy to capture the moment waveform.  Available rising or falling edge trigger.  Adjustable vertical displacement, and with instructions.  Observable previous trigger waveform (negative delay).  Can freeze waveform display at any time (HOLD function).  Comes 1Hz /3.3V square wave test signal source.  With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.  Waveform storage function: will not lose the waveform after power off.  Short-circuit and open-circuit detection: can help the user find out the soldering error.    Note: not DIY kit.    Specifications:  Material: Aluminium Alloy + Acrylic  Maximum Real-time Sampling Rate: 1Msps  Accuracy: 12Bit  Sampling Buffer Depth: 1024 bytes  Analog Bandwidth: 0-200KHz  Vertical Sensitivity: 10mV/ Div - 5V/ Div (1-2-5 progressive manner)  Input Impedance: 1MΩ  Maximum Input Voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe)  Coupling Modes: DC/ AC/ GND  Horizontal Time Base Range: 10μs/ Div - 50s/ Div (1-2-5 progressive manner)  Supply Voltage: DC 9V  PCB Size: 11.7 * 7.6cm / 4.6 * 3.0in  Item Size: 17.5 * 12.0 * 2.5cm / 6.9 * 4.7 * 1.0in  Package Size: 18.0 * 12.5 * 3.0cm / 7.1 * 4.9 * 1.2in  Package Weight: 168g / 5.9oz    Package List:  1 * Oscilloscope  1 * Probe  2 * User Manual