DSO Series:

Model	DSO Nano (DSO211)	DSO Note II (DSO202)	DSO 212	DSO Quad (DSO203)
MCU	STM32F103VC	STM32F303VC	STM32F303VC	STM32F103VE
ADC	MCU internal ADC	MCU internal ADC	MCU internal ADC	AD9288
Channels	Analog channel 1 + 1 internal channel	2 analog	2 analog	2 analog, 2 digital
Analog Bandwidth	200KHz	1MHz	1MHz	8MHz
Max Sample Rate	1MSa/s	10MSa/s	10MSa/s	72MSa/s
Maximum Memory Depth	8K	8K	8K	4K
Horizontal Sensitivity	1uS/Div~2S/Div(1-2-5sequence step)	1uS/Div~2S/Div(1-2-5sequence step)	1uS/Div~2S/Div(1-2-5sequence step)	0.1uS/Div~1S/Div(1-2-5sequence step)
Vertical Sensitivity	20mv/Div~10V/Div(1-2-5sequence step)	20mv/Div~10V/Div(1-2-5sequence step)	20mv/Div~10V/Div(1-2-5sequence step)	50mv/Div~10V/Div(1-2-5sequence step)
Input Resistance	1MΩ	1MΩ	1MΩ	1MΩ
Coupling	DC / AC	DC / AC	DC / AC	DC / AC
Auto Adjustment Mode	AUTO_FIT	AUTO_FIT	AUTO_FIT	NO
Calculation Waveforms	-A, RecA, A + RecA	-A,-B,A+B,A-B RecA,RecB,RecC	-A,-B,A+B,A-B RecA,RecB,RecC	-A,-B,A+B,A-B RecA,RecB,RecC
Storage	8MB USB flash disk memory	8MB USB flash disk memory	8MB USB flash disk memory	8MB USB flash disk memory
APP Installed	1	2	2	4
Operation	buttons	button,touch area	buttons,scrollers	buttons,scrollers
USB Interface	Micro USB	Micro USB	Micro USB	Mini USB
Battery	500mAh	500mAh	500mAh	1000mAh
Screen Size	2.8inch	2.8inch	2.8inch	3.0inch
Screen Resolution	320 × 240	320 × 240	320 × 240	400 × 240
Open Source	Application layer Open-Source

Rising/Falling edge trigger
Store file as BMP, DAT, BUF, or CSV format
Math waveforms:-A,-B,A+B,A-B,Rec A,RecB,RecC
Synchronous mode: Auto, Normal, Single, None, Scan
Inbuilt 8MB U disk storage for waveform data and images
Modes of vertical precise, horizontal precise measurement and triggering threshold
Auto Measurement: frequency, cycle time, duty cycle, DC RMS voltage/Vpp /Vmax/Vmin/Vavg
Inbuilt Signal Generator: Sine/Square/Triangle/Sawtooth wave