DSO Quad 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. 
Feature
- 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 (x1 probe);
 - Vertical solution: 8 bit ;
 - Input coupling: AC/DC ;
 - Max input voltage: 80Vpp (x1 probe);
 - Storage: 4K per channel
 - Software trigger type: edge, pulse, level (to be added)
 - Hardware trigger type: edge
 - Trigger source: CH1/CH2/EXT
 - Test Signal generator: 10Hz to 1Mhz
 - Storage: internal 2MB USB disk
 - Auto measure: Vmax, Vmin, Vpp, Vavr, Vrms, Freq, Period, Pulse, Duty
 - Cursor measurement: Level, Voltage
 - Display mode: CH1, CH2, EXT, CH1+CH2, CH1-CH2, CH1*CH2
 - Sampling mode: real time
 - Sampling rate: 1kSa/s - 72MSa/S
 - Power: Lipo battery
 - Dimension: 98 * 60 * 14.5
 - Weight: 80g (without battery)
 - Accessories within Pack: 2 mueller mcx oscilloscope probe, 2 digital probe,
 
Pack list

