138Pro

Easy to use. Battery is great. Small, but easy to read. Easy to use while charging.MUCH better than AUKUYEE Q15001O.Auto function gets close, but needs tweeking to be useful.Punching through functions is a little slow (long sequence). A little difficult to set all parameters, but once set, it is a breeze.Probes are very short, but work.

last time I used an oscilloscope it was on a rolling cart with 2 dozen lights, lit buttons, triple axle selector switches, but the probe has not changed.....using it to factory set a couple of dbx 3bx we bought, of course they did not work and sure them sellers messed with it because 'there is a knob we can turn'.... no problem.nice, every function clearly there, very intuitive compressed interfacesolid probe connectionnot using the function generator section of it, have dedicated ones for different rangesthe auto thing is particularly great, it comes up with very good results, just a little personalizationseems to set the trigger a little too close to zero for small signals and does not trigger, but hey, all good.this is the smallest working scope I ever usedgrown up real probes, no 'toys'.battery is still not discharged (did not find a battery level indicator (yet), not important

This scope is good for low frequencies but it is small. Useful for testing circuits especially being battery powered that makes it portable. If you are checking waveform timing, this may not work unless the timing frequency is below 200kHz. Works pretty well though.

After trying another unit that failed, I tried this one and was very impressed. It comes with a rechargeable battery, two probes, one is 10X so you can measure unto 600 volts and the "auto" mode syncs well on the signal. No dial for changing settings and no signal generator but the pluses outweigh minor limitations. It has been years since I used an oscilloscope so amazing you can get something that works for around $50. I know this was a group effort and there are many versions out there but I like this one a lot.

Always wondered where or when I would use an Oscilloscope. Now I have one and if I find out I have one to use! Cheap enough just to have as an extra "just in case" tool.