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DSO Nano v3


The DSO Nano V3 is a pocket-size handheld 32bit digital storage oscilloscope. Based on ARM -M3, it’s equipped with 320*240 color display, SD card, USB port, and recharging function.




  • Portable and lightweight

  • Color display

  • Waveform storage and playback

  • 6 triggering modes

  • 200Khz Analog Bandwidth

  • Complete measurement markers and signal characteristics

  • Built-in Signal Generator

  • Accessories available


The DSO Nano V3 is a pocket-size handheld 32bit digital storage oscilloscope. Based on ARM -M3, it’s equipped with 320*240 color display, SD card, USB port, and recharging function. It’s compact, simple to operate; meets the basic demands of the school lab, electric furniture repairment, and electric engineering.

This is an updated and cool version of DSO Nano which features a firmware and an embedded 2 Mbyte storage chip instead of a micro SD card slot. The documents of this version in detail are on this page, please refer to it.

What can an oscilloscope measure?
An oscilloscope is mainly used to measure volts, the Oscilloscope can measure a variety of other signals from:

  • Current: to measure current, you can either measure the voltage drop across a shunt resistor or use a current probe.
  • Sound: to measure sound, use a transducer that converts the audio signal to a voltage.
  • Frequency and Period
  • Frequency = Number of times per second a waveform repeats
  • Period = Number of seconds each repeating waveform takes.
  • Duty Cycle
  • The ratio of how long a signal is positive VS negative each period.
  • Rise and fall timing
  • Measure the duration where signals rise to a high point and the duration where signals fall to a low point.
  • How fast a circuit can respond to signals
  • Voltages characteristics
  • Magnitude (amplitude) of a signal (Peak-to-peak amplitude)
  • Maximum and Minimum Voltages (Calculate the highest and lowest voltage of your signal)
  • Mean and Average Voltages
  • Resistance
  • DC Voltage / AC Voltage

Updates in DSO Nano v3

  • DSO Nano v3 used a new firmware with a user-friendly and easier-to-operate interface. 

  • Upgraded firmware via virtual disk

  • Added build-in 2Mbyte storage chip instead of micro SD card slot

  • Black metal shell


This product is designed by Minidso, for technical support, please contact with them via  [email protected]


DSO Nano with SD card slot is not available now. If you get one from our distributors’ stock, please click here to check the document.

Technical details

Dimensions 149mm x101mm x33mm
Weight G.W 184g
Battery Lithium Cells / Batteries contained in equipment UN3481 - PI967
Display 2.8'' color TFT LCD
Display Resolution 320x240 Display Colors 65K
Analog Broadband 0 ~ 200kHz
Max. Sampling Rate 1Msps 12 bit
Sampling Storage Depth 4096 points
Transverse Sensitivity 1uS/Div~10S/Div(1-2-5 stepping)
Vertical Sensitivity 10mv/Div~10V/Div(x1 probe) 0.5V/Div~10V/Div(x10 probe)
Input Resistance >500KΩ
Max. Input Voltage 40Vpp(x1 probe)
Coupling Mode DC
Triggering Mode Auto,Normal,Single,None
Auto Measurement Frequency, cycle, duty, Vpp, Vram, Vavg, DC voltage; Vertical Precise Measurement Cursor; Horizontal Precise Measurement Cursor; Rising/Falling Edge Trigger; Triggering Cursor; Triggering Sensitivity Cursor; Hold/Run
Inbuilt Test Signal 10Hz~1MHz(1-2-5 stepping)
Waveform Storage build-in 2Mbyte
PC Connection Interface Connection through USB
Recharging Method Recharging through USB interface
Dimensions 105mm x 53mm x 8mm

Part List

DSO Nano 1
Metal Stand 1
Screw 1
Probe cable 1
Sack 1


HSCODE 9030201000
USHSCODE 9030906800
UPC 841454110316
EUHSCODE 9030900000
CE 1
EU DoC 1
RoHS 1





If you want something more advanced that can provide you with more information than your multimeter to troubleshoot your circuit, the Oscilloscope is a must-have!
DSO Nano v3 is a portable digital storage oscilloscope. Based on a 32-bit ARM Cortex-M3 microcontroller, it is equipped with 320*240 color display



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  1. Product Quality
    DSO Nano v3 The product met all my expectations. Worked fine, delivered on time and unbelievable cheep.
    Hans Lidgren
  2. Product Quality
    Small and good very good product
  3. Product Quality
    DSO NANO V3 The user manual is not totally updated. The procedure for saving data is not correct.
    Could you please update it and send me the new version?


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