FNIRSI DSO152 Oscilloscope - 2.8" TFT Handheld Digital Oscilloscope Kit Portable Oscilloscope, 2.5MS/s High Sampling Rate, 200KHz Bandwidth, Trigger Function Auto/Nomal/Single

Looks great and functions great so far! The price is hard to beat!It is very light weight and small which I think is an advantage because I’m adding it to my tool box where I never have enough space. It also gives me the option to travel with it if needed to track days and racing events.I can’t comment on battery life as I just charged it up for the first time and tried it out.I bought it to help me troubleshoot some issues on my car, and I’m sure I’ll use it for future cars as well!

When I think back to the many hundreds of dollars for a decent O'scope decades ago, I was skeptical to say the least, but I gave it a shot - for $30 bucks (returnable), why not?Since I've been running on generator for several days, and my electric clocks were running way fast, yet the generator was at 60 cps +/- 1, I was concerned about harmonics or distortions..I received the unit this morning, charged it fully, calibrated the 1x/10x probe (yes, the provided tool fit the adjustment cap on the probe just fine) and it calibrated beautifully on 10x. After reading the included manual and playing with the unit a few minutes getting familiar with it, I checked the generator output and confirmed there are some minor artifacts on the sine wave, but not anywhere near as bad as I feared.If I had any complaint, it's that I didn't look for a dual-trace scope so to check phase relationships on the generator's 208 output, but that's on me.The parameter readout on the screen (Voltage, Freq, etc.) is clear, the waveform trace is sharp. Auto dialed the appropriate settings right in on the sampled line, quick selection of the parameters with the "Track Wheel" and adjustment of each with the up and down buttons was almost instinctive.. This is a very cool instrument.Maybe someday I'll have the opportunity to compare it to a calibrated Tektronix scope standard, but I suspect it will be pretty close, certainly "good enough for field work".Full case around the unit, the probe's MCX interface connector is tiny and looks like it could be fragile, so treat it like it's much more expensive than it is and you'll probably be as happy with it as I am..

This single-channel digital 'scope provides an economical and easily-portable tool to give a basic display of waveforms and their overall parameters. This 'scope is small enough to fit into (some) shirt pockets; it has a good physical layout (controls & display); the case seems to be robust and likely to protect the unit from rough handling; the display is easy to see under normal room lighting, but can be difficult to see under bright daylight conditions - like most such displays; the user interface is intuitive and easy to use; it comes with a conventional 1x/10X oscilloscope probe (with accessories) as well as a set of alligator clip leads that can be used in place of the probe; and the device is inexpensive.Beyond the inherent limitations of a single-channel 'scope, the only disadvantage I've noticed is the rather glaring omission of an important basic function of an oscilloscope: That is, the ability to re-position the trace on the screen - which is important for using the grid to precisely measure the height and/or width of "features" of the observed waveform (although this "deficiency" is partially compensated for by the on-screen numeric displays of most OVERALL waveform parameters - but there is no way to measure specific PARTIAL features of waveforms. The other problem resulting from the inability to adjust the position the waveform on the display is that the user cannot "zoom-in" on fine details riding on large-amplitude waveforms.This basic 'scope does not offer any of the "bells and whistles" available on some more sophisticated 'scopes, but the only "high end" feature that would be particularly helpful is measurement cursors - that would allow measurement of "features" or specific sections of the displayed waveform. Having cursors would help to compensate for the 'scope's lack of ability to adjust the position of the trace relative to the display grid.I do not have the ability to check the 'scope's fine accuracy, but its readings are consistent with other meters and 'scopes that I have available.I have not used this 'scope long enough to report on its long-term behavior, but it seems to work well so far.

Wish I would have known they made these hand held versions years ago! I bought this to set the gains on my head unit and amplifiers for my golf cart and motorcycle stereo builds. worked perfect. You do need a good understanding of how an oscilloscope works to use this but there are a lot of videos out there to help you understand. Very nice product!

Unbelievable value for the money. Small learning curve with navigation but it does a ton and seems plenty accurate for my tinkering habits.

And excellent little low costOscilloscope, user friendly.Battery lasts a long time, very impressed

Does the job very well. Easy to use on the field. The biggest drawback is the lack of Battery Charge indication.Can't believe they missed it. Or is it just me ?