DS203 is a pocket size 4 channel digital oscilloscope for common electronic engineering tasks. It's based on ARM cortex M3 (STM32F103VCT6) 32 bits platform, providing 72MS/s sampling rate with integrated FPGA and high speed ADC. Internal 2MB USB disk could be used to store waveform, user application and upgrade firmware.

Note: Due to the metal conductive shell of DS203, its operating voltage should be controlled under 60V during working in case of any damage to the DS itself or human.

Hardware Version: 2.72B

Features:
Pocket size and light weight
Two 72MS/s analog channels, plus two digital channels
Signal Generator
Auto Measurement
Various Triggering Option
Easy waveform storage
Firmware upgrade
User applications
Open source

Specifications:
Analog channel * 2 : [CH_A] [CH_B]
Digital channel * 2 : [CH_C] [CH_D]
Vertical Scale: 20mV-10V/div (1-2-5 step) on x1 probe / 200mV -100V/div (1-2-5 step) on x10 probe
Vertical solution: 8 bit
Input coupling: AC/DC
Max input voltage: 80Vpp (x1 probe) / 400Vpp (x10 probe)
Storage: 4K per channel / 8K on single channel
Software trigger type: edge, pulse, level (to be added)
Hardware trigger type: edge
Trigger source: CH1/CH2/EXT
Trigger mode: Auto, Normal, Single, SCAN, None
Test Signal generator: 10Hz to 8MHz 2.8Vpp Square Wave, duty cycle 10~90% adjustable / 10Hz to 20kHz 2.8Vpp Sine, Square, Sawtooth, Triangle wave
Storage: internal 2MB USB disk,BMP,DAT file
Auto measure: Vmax, Vmin, Vpp, Vavr, Vrms, Freq, Period, Pulse, Duty
Cursor measurement: Level, Voltage
Display mode: CH1, CH2, EXT, CH1+CH2, CH1-CH2
Sampling mode: real time
Sampling rate: 30S/s - 72MS/S
Power: Lipo battery
Dimension: 98 * 60 * 14.5
Weight: 120g (with battery)
Accessories within Pack: 2 mueller mcx oscilloscope probe

Pack list:
DS203 X1
Battery X1
Mueller mcx oscilloscope probe X2
Screwdriver X1