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: 1M Maximum Input Voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe) Coupling Modes: DC/ AC/ GND Horizontal Time Base Range: 10s/ 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: 280g / 9.9oz Package List: 1 * Oscilloscope 1 * Probe 2 * User Manual