Opinions on a pocket or small Digital Osciloscope

[Whoops]

Hello,
I need a small Osciloscope for basic audio work, like troubleshooting, setting the bias on Neve 1290, calibrating, etc

I need a small portable one so I can take it to different locations outside my workspace.

I was checking different models around the web, do you have any experience or thoughts on any of the following models?

DSO138 DIY Kit

• Highest real-time sampling rate : 1Msps
• Accuracy : 12Bit
• Sampling buffer depth : 1024 bytes
• Analog bandwidth : 0 - 200KHz
• Vertical sensitivity : 10mV / Div - 5V / Div ( 1-2-5 progressive manner )

http://www.ebay.co.uk/itm/New-SainSmart-DSO138-2-4-TFT-Digital-Oscilloscope-DIY-Parts-Kits-1Msps-Probe-/301744963958?hash=item464166c176

____________________________________________

DSO112 Pocket Osciloscope

Specifications:
Analog Bandwidth: 0-2MHz
Maximum Real-time Sampling Rate: 5MSa/s
Vertical Sensitivity: 5mV/Div-20V/Div 12 Gears (by way of Progressive 1-2-5)
Horizontal Time Base Range: 1μs/Div-50s/Div 21 Gears (by way of Progressive 1-2-5)
Maximum Input Voltage: 50Vpk(100Vpp)
Record Length: 512/1024 Optional
Input Impedance: 1M ohm
ADC Accuracy: 8Bit

http://www.ebay.co.uk/itm/DSO-112-2-4-TFT-Mini-Digital-Oscilloscope-with-Probe-USB-Interface-2MHz-5MSa-s-/321868066463?hash=item4af0d4ee9f

___________________________________________

DSO201

Analog bandwidth  0 - 1MHz
Max sample rate    1Msps 12Bits
Sample memory depth 4096 Point
Horizontal sensitivity 1uS/Div～10S/Div (1-2-5 Step)
Horizontal position adjustable with indicator
Vertical sensitivity 10mV/Div～10V/Div (with ×1 probe)      0.5V/Div～10V/Div (with ×10 probe)
Vertical position Adjustable with indicator
Input impedance >500KΩ
Max input voltage 80Vpp (by ×1 probe)

http://www.ebay.co.uk/itm/New-ARM-DSO201-Nano-Mini-Portable-Handheld-Pocket-Sized-Digital-Oscilloscope-/301399526590?hash=item462ccfccbe

____________________________________________

DSO 32bit Nano V3

Specifications:
Display: 2.8" Color TFT LCD
Display Resolution: 320*240 Display Colors 65K
Analog Broadband: 0 ~ 200kHz
Max. Sampling Rate: 1Msps 12Bit 
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: 80Vpp（x1 probe）400Vpp(x10 probe)

http://www.ebay.co.uk/itm/32-Bits-Compatible-Mini-Seeed-Studio-DSO-Nano-V3-Digital-Storage-Oscilloscope-/301593152309?hash=item46385a4b35

_______________________________________________

Mini Nano ARM DSO201

Major Functions
Display      2.8” color TFT LCD   
Display resolution      320×240   
Display Colors    65K   
Virtual Broadband    0-200kHz   
Max. Sampling Rate    1Msps 12 bit   
Sampling Storage Depth    4096 points   
Transverse Sensitivity    1uS/Div~2S/Div(1-2-5 stepping)   
Vertical Sensitivity    10mv/Div~10V/Div(x1 probe)      100mV/Div~10V/Div(x10 probe)   
Input Resistance    >500Kω   
Max. Input Voltage    80Vpp（x1 probe）   

http://www.ebay.co.uk/itm/Mini-Nano-ARM-DSO201-Pro-Pocket-Size-Handheld-Digital-Storage-Oscilloscope-UK-/231191151135?hash=item35d411021f

_____________________________________

DSO062 DIY Kit

Maximum equivalent-time sampling rate (repetitive signal) - 20MSa/s
Maximum real-time sampling rate - 2MSa/s
Resolution - 8 bits
Record length - 256 bytes
Analog bandwidth - 1MHz
Vertical sensitivity - 100mV/Div - 5V/Div
Vertical position adjustable with indicator
Input impedance - 1M ohm
Max input voltage - 50Vpk (1x probe) [500Vpk for 10x probe]


http://www.ebay.co.uk/itm/DSO062-Digital-Oscilloscope-1MHz-Analog-Bandwidth-20MSa-s-DIY-Kits-for-Arduino-/171906102855?hash=item280666f647


________________________


Thank you so much

 

[erikb1971]

I could be wrong, but I think I have one of those small diy osciloscopes )not exactly the one in your post but something like it) laying around somewhere at home, being completely unused. I am on hollidays now, but send me a pm or something in a week. If I still have it you can have it for the sending costs (Holland , Europe here) and a donation to the forum.
Hope that helps...

 

[Whoops]

I could be wrong, but I think I have one of those small diy osciloscopes )not exactly the one in your post but something like it) laying around somewhere at home, being completely unused. I am on hollidays now, but send me a pm or something in a week. If I still have it you can have it for the sending costs (Holland , Europe here) and a donation to the forum.
Hope that helps...

Thanks I will contact you.

In the meanwhile if anyone  has experience with this models please share your thoughts. Thanks

 

[Rochey]

I'm hearing glorious things about the Rigol DS1054
http://www.amazon.com/Rigol-DS1054Z-Digital-Oscilloscopes-Bandwidth/dp/B012938E76/ref=sr_1_1?s=industrial&ie=UTF8&qid=1443105468&sr=1-1&keywords=rigol+50mhz

I have a 1052, and really am thinking abotu switching.

Main advantages - 4ch (and can do differential inputs too in that case)
Serial Control Debugger - very useful for looking at the SPI / I2C code coming from your microcontroller.

 

[gswan]

Check out the Siglent SDS1202X.
200MHz, 1Gsa/s. There's a 100MHz version as well, for about $500 which is amazing bang for buck.
Dave has a video covering too.

 

[Whoops]

The advise I need is about Pocket Osciloscopes in the $30 to $60 range.

Please read the first post, its clear there, I have 6 models with links, those are the most popular models floating around webstores, and it eould be nice to know if someone in the Groud has ecperience with any of them.

Thanks

 

[gswan]

You also mentioned that you wanted to calibrate equipment with it.
You can't calibrate equipment with any degree of confidence with an el-cheapo uncalibrated instrument.
You can't even rely on the reading with any degree of confidence.
Cheap test equipment is like cheap audio equipment. You get what you pay for.

 

[Whoops]

Thanks Gswan, I will take you advise and not use it for any serious calibration.
I will have a good Oscilloscope in the workshop,
but I need a basic , portable Osciloscope for some outside work.

I just don't have experience with any of this models, and it would be great to know the opinion of someone that already used any of them.

Thank you