• --Adjustable vertical displacement, and with instructions.
• --With automatic, regular and one-shot modes, easy to capture the moment waveform.
• --Available rising or falling edge trigger.
• --With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.
• --PCB Size: 117 x 76mm / 4.6 x 3in

Description:
Name: Digital Oscilloscope
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
The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)
Supply Voltage: DC 9V
PCB Size: 117 x 76mm / 4.6 x 3in
Screen Size: 52 x 40mm / 2 x 1.57in
Package Size: 18 x 12.5 x 3cm / 7.08 x 4.92x 1.18in
features:
Observable previous trigger waveform (negative delay).
Can freeze at any time waveform display (HOLD function).
Comes 1Hz /3.3V square wave test signal source.
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.
TFT controller recognition function.
This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display screen, can be used as ARM test development board.
Can be secondary development on the basis of this kit, for example, it can be changed to Millivoltmeter, data loggers.
Packing list:
1 x Digital Oscilloscope
1 x Probe
2 x User Manual(English)
1 x DSO138 acrylic case
Note:
Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 
Manual measuring,please allow 1~3mm error,thank you.