Seeed Studios TOL01241P Digital Storage Oscilloscope, Nano v3, 105 mm x 53 mm x 8 mm Size

This scope is identical to the V2 in "guts" and features, but has a metal case at about the same price as the 2. If you want all the dope on function and features, see the 20+ reviews on the 2 here: DSO Nano oscilloscope V2. There's a well done pdf users manual online too-- same for this and the v2.Points not made in previous reviews:1. The metal case IS nice, and there were complaints about the plastic having range problems in the heat. I have both and both work great for single channel applications.2. A GOOD two channel with all these features can cost as much as $500 on up. It would be better to get two of these, then compare oscillations -- AUC's without the overlay if you're not too picky about pinpoints and want to see general signal comparison trends, which work for 95% of checks. You're going to pay quite a penny (nearly 300 low end, 500+ higher end) for a good 2 channel unit like: Owon SDS7102 Deep Memory Digital Storage Oscilloscope 2-channel with VGA and LAN interface. The question to ask is do you really need the waveforms on top of each other, or can you just put these little units next to each other and get the same info? They're pocket sized!3. Comparing this to my big brother lab units, measurements are within 3%, not bad for hobby applications. I use it with the raspberry pi and it works great! I've used the v2 on the Arduino forever and it's fine for nearly all checks and comparisons.4. Other reviews have recommended you swap out the OS on some of these versions-- DO NOT do this on this unit or the 2 until you try it. It's been updated many times since those reviews, and you're likely to be happy with this out of the box. There are polarity issues for the signal generator, but an easy fix, see the fixes in the version 2 reviews mentioned above.Gabotronics has also just come out with their xprotolab portable, at about the same price. Sparkfun will likely put it on Amazon sometime late in 2013 when it ships reliably. We did a number of regressions of quality indicators by price for ALL current digital scopes, and the best price/feature fit was by megahertz measured. The y=mx+b regression factor is .1295 with a 99% fit to data, so if you divide megahertz desired by that factor, you'll get a close estimate of what you'll have to pay. We tried to put the full regression in this listing as a picture, but Amazon doesn't always get what we're trying to do and removes it! Just put your mhz in 50 mhz increments from 50 to 1,000, divide by the regression coefficient (.1295) and you'll get a good estimate. For 50, you get about $386, which is quite accurate.Happy measuring! This little devil takes your Multimeter to the next stage, and will impress your friends!;=) Enjoy

About a year ago i sold a large traditional bench top scope because i did not use it more than a dozen times a year. A year later doing some hobby work on radio systems i kick myself for doing so. There are two things that make this a must have for the electronics hobbyist, size and use. The majority of the time i used my scope for looking for noise in systems, looking at PWM signals, and characterizing various sensors. This device seems that it will handle all these jobs with ease. Ive been contemplating downsides considering the price... the only thing i don't like right off the bat is the build quality on the buttons, very loose in their housings. Other than that small detail, for the price, you can't beat this.

This little guy changed the way I set gain on my amps. Everything sounds better and clean. I no longer have to worry about blowing speakers or over driving the amps. It worked fine since December 23 2016. Now the battery doesn't want to charge. I am not sure what the problem is. Being a Chinese product and seed studio is based in china I am stuck with e-mailing the company for support and who wants to go through that. if the battery was shot and I could at least power it through usb I would be fine with that since I don't use scope all the time and I have my 12 volt socket in my car so it would be a none issue, but it turns off as soon as you turn it on. I figure I will cut my loses and buy a different scope. Just for the record this is the second unit I received. The first one worked for a few minutes and after that a white screen. My case does not represent the quality of the product but I would not recommend this to anyone and the warranty is only for 2 months? even they don't have faith in their product lol. Save your money double your budget and get a more reliable scope

Let's get this out of the way first: this is NOT a professional oscilloscope. So, my 5 star rating should be understood in the context of what is purchased.I did not have the budget for a profession oscilloscope but I also did not have the need for one. I needed to observe signals from the 3kHz through 40kHz range and this very affordable oscilloscope does that job very, very well. I know it has a wider range than that but that is what I needed and what I can talk to.I am so very happy with this device every time I use it. I know that sounds like hyperbole but it is incredible to me that, for less than $100, I am able to know (not guess) what signal I am generating.As you can tell by this review, I am a novice in electronics. Even so, with the help of YouTube and this little and awesome device, I was able to move a project along that had been stalled for months!

First this is a handheld oscilloscope, so you have to go through menus to get things done. It's real plus is the size and in tight places, it saves the neck strain trying to look at waveforms. Of course this little oscilloscope will not replace the "full size" oscilloscope but it is a neat tool to have at hand when you need it.The issues that come to mind:There was no operating manual in the box and none of the user manuals on the internet seem to fit the firmware loaded. Actually the box contained instructions on proper assembly procedures even though unit was already assembled. So, after some time fiddling with the unit, I sort of have my arms around the functions. Still would like to find a manual for my particular firmware and see what bad habits I have picked up.The unit doesn't have a AC function, in honesty may have one but I haven't found it. So, looking at a AC signal on top of a DC level is a bit of a pain. Again, if I had the manual this issue might be mute. For now I solved by using a capacitor in series of the input.There was no charging unit provided. It charges off the USB port and with some minor fiddling all is good.