DSO203 is a 5-trace 4-channel digital oscilloscope for common electronic engineering tasks. Its CPU is based on ARM Cortex M3, adopting FPGA to manage the control & data buffering of ADC. A built-in 8MB USB disk enables users to store waveforms & upgrade firmware. It also provides 4 application areas, convenient for users to load & upgrade at most 4 kinds of application firmware.

Features:
400*240 Colorful TFT display, mini and compact design for portable use.
4-channel, 8MHz bandwidth, 1MΩ input impedance, 72MSa/s Max. sample rate.
Synchronous mode: Auto, Normal, Single, None, Scan.
Inbuilt 8MB U-disk storage for waveform data and images.
Rising/falling edge trigger, positive/negative pulse width trigger.
Auto measurement: frequency, cycle time, duty cycle, DC RMS voltage/Vpp/Vmax/Vmin/Vavg.
Math waveform: [CH_A]+[CH_B], [CH_A]-[CH_B], [CH_C]|[CH_D], [CH_C]&[CH_D], RecA,  RecB, RecC, RecD.
Inbuilt signal generator/10Hz—8MHz square wave (duty adjustable) or 10Hz—20KHz Sine/Square/Triangle/Sawtooth wave.
Built-in 3.7V 1000mAh lithium battery, adopts USB interface for charging.

Firmware Upgrade:
http://www.minidso.com(Download the applicable firmware by yourself.)

Specifications:
Display: Full Color TFT LCD Display(400*240 pixels)
Case Type: Plastic Case / Metal Case(Optional)
ADC: AD9288
Coupling: AC/DC
CPU: ARM Cortex M3
FIFO & Control: FPGA
Analog Bandwidth: 8MHz
Max. Sample Rate: 72MSa/s
Analog Input Impedance: 1MΩ
Memory Depth: Single Channel 8K, 4-channel 4x4K
2-Analog Channel: [CH_A], [CH_B]
2-Digital Channel: [CH_C], [CH_D]
Max. Input Voltage: 80Vpp(X1 probe); 400Vpp(X10 probe)
Vertical Sensitivity: 50mV-10V/div(1-2-5 STEP)(X1 probe); 200mV-100V/div(1-2-5 STEP)(X10 probe)
Horizontal Sensitivity: 0.1uS/Div~2S/Div(1-2-5 sequence step)
Power Supply: Built-in 1000mAh Lithium Battery
Charging Interface: USB Interface
Operating Temperature: 0~50°C 
Storage Temperature: -20~60°C 
Dimension: 99 * 59 * 13mm / 3.9 * 2.3 * 0.5in
Weight: 117g / 4.14oz(Metal Case); 92g / 3.24oz(Plastic Case)
Package Size: 18 * 10 * 5.5cm / 7.1 * 3.94 * 2.2in
Package Weight: 325-350g / 11.5-12.37oz

Package List: E1289
1 * Oscilloscope
2 * Probe
1 * Mini USB Cable
1 * Hex Key(Only Metal Case Type)
1 * Flannel Bag
1 * User Manual(English)