HANMATEKHandheld Digital Oscilloscope 100Mhz Bandwidth with 2 Channels HO102 3.5"TFT Mini Oscilloscope, 2 in 1 Oscilloscope and Multimeter, Backlit Screen, Auto-Calibration Function, Memory Function

I do the occasional electronics project at home, and I own a nice Fluke multimeter, but every now and then, an oscilloscope would come in handy. I don't really have the space for a full-size desk scope, so when I saw this little box of tricks, I thought I'd give it a try.It's great! All the functionality of a basic 2-channel digital 'scope - cursors, measurements, adjustable triggering, XY mode - in a box the size of a Fluke, with a decent signal generator and an acceptable multimeter as well. The signal generator will do the usual sines, sawtooths, square and pulses, along with a few other more exotic waveforms. The meter is basic, but has all the functions and ranges you would want for most electronics work.The kit is pretty comprehensive, too - in addition to the meter, you get a carry case, USB cable and UK power adapter, two scope probes, a pair of meter probes and an output cable for the signal generator. The manual is a bit sparse and not that well written - if you already know how to use a scope, you'll be fine, but I wouldn't recommend the manual to a beginner. (If you already know how to use a scope, a meter and a sig gen, you won't need the manual anyway - the controls are all pretty logical.) It all feels of decent enough quality - it's not a Fluke ScopeMeter, but then it's less than a tenth of the price!It is powered by a rechargeable (via USB-C) battery, which is good for 4-6 hours.Cracking bit of kit, and fantastic value for money.

After messing up the language settings (reverted back to Chinese!) and getting them back to English (don't ask me how!) I managed to start using this Oscilloscope/Meter. Comes in a soft bag with all the required leads and a comprehensive manual. Buttons are soft rubber but very tactile and firm in their operation, the screen is clear and the brightness is adjustable. There are more settings to change than you could shake a stick at so I am not going to go into a full technical review here, suffice to say this is a good, quality, robust oscilloscope/Meter which is excellent value for money. I am looking forward to making full use of this in my job and hobbies.

Although it will not replace a good lab oscilloscope, for the occasional hobby maker like me is the perfect balance between functionality, size and cost. I do not give it 5 stars because the instructions manual is limited. It comes with a CD but I don't think I have a laptop with CD tray at home anymore.

The instructions are slightly underwhelming, definitely a few functions you need to figure out for yourself to use properly, but it's well featured and seems to provide a good trace. I'm using it on 8 bit micros and it provides all the info I need to reliably fault trace.

After two extended sessions across two days, despite the manual being a bit sparse (e.g. "XY mode option: Choose to turn XY mode on or off"), I feel like I've got a handle on this device now. My main use for it was to see if I can make a decent rectifier and voltage regulator for a bicycle dynamo that produces AC, pictured, and evaluate different components for it. It'll also be really valuable for another project where I want to work with really short LED light bursts, where I'll be able to set single-shot triggers to examine what's going on during the micro- and nanoseconds surrounding the event.Probing various stages of the rectifier, and being able to monitor graphically what difference it makes to add filtering capacitors, and vary their sizes, or watch exactly how much of an effect a bleeder resister has across a capacitor, is quite satisfying, and really gives a better feel for what's going on than a multimeter can. I'm only starting out in electrical engineering, and I get the sense I'm going to have to have pretty special use cases and get far more advanced before I could imagine needing any more features than this device provides, plus this little device is far less intimidating (and costly) than a traditional desktop oscilloscope.Some other notes:I had to check out a few other oscilloscope videos online where there was a particular feature that the manual didn't explain well enough for me.I expected it to run off some AA batteries, but it turns out it's got a rechargeable battery inside, that can be replaced easily enough if needed.Leaving the multimeter probes connected whilst probing with the oscilloscope, there was some extra noise, so make sure to unplug the multimeter probes when not in use.I wish there were a dedicated zoom in / out button per axis, I find it unintuitive to use the arrow buttons of the axis perpendicular to the mode I'm using instead. If you zoom out far enough on the time axis, you can get a handy scrolling view of the voltage, somewhat like a seismograph.Something that wasn't clear to me despite being in the title: having two channels means you can monitor two signals at once, or use one channel's signal to trigger a capture for the other channel.I'd suggest, while using the reference square wave after calibrating the probes, try out all the buttons and function buttons in various modes, safe in the knowledge that you can factory reset to get back to square one if you need to.

This item was easy to set up, and easy to use, has usable waveforms, and helpful when checking for signal, and pulses. The battery lasts well and gives plenty of time to carry out checks, and find faults.

I fully charged it with the supplied USB power adapter and it declined to 75% power overnight and I've since put about ten minutes on it and it seems to be down to 60% .... I'm not sure about the two hour claims but I'm sure that's why they don't put a running time total on the thing, Like who wants to know how long they have it on for one session???? I'm going to give it a chance though and see how it does after three or more charging cycles. Amazon, be prepared to get this one back or supply me with a unit that remotely gets near the two hour battery life claims.Btw, discovered another issue, the 1x/10x attenuation switch gets stuck when removing the claw and exposing the point of the probe, so you can’t grasp it by the handle and pull, you must grasp it by the stress relief and make sure the handle doesn’t slide back on the core. You can tell if it’s in the wrong position by trying to slide the switch. Update, I am quite pleased with this item and all battery issues have ironed themselves out and as far as the drain of the battery in the off state, it loses only 20% after two weeks sitting. I did a concurrent test and the battery showed a little over three hours of operation with minimal use of the generator or resistance testing.

This review is based on several weeks of use, so no long term conclusions.The good parts.I needed a portable "floating", as in isolated ground, scope for poking around on the mains side of power supplies. HO52 fits the bill. It seems to do the advertised 50MHz and has the multimeter side isolated from scope side, as in, multimeter ground is not connected to scope ground. Probe BNC connectors are shrouded and 1KHZ contacts have rubber cover. So from visible safety perspective it looks good.The interface (buttons) is laid out reasonably well, so it is possible to operate with one hand - I can hold the unit in my left and reach all the buttons with my thumb.Battery life seems to be around 5 hours, but I did not try to run continuously for 5 hours.Multimeter readings seem to be within reason from Brymen BM869, so no complaints. Although multimeter is not my reason for buying O52.Not so great parts.Autoset function works fine down to 20mV-18mV signal. As long as you do not expect benchtop performance out of the portable unit, it is OK. Frequency measurement starts working at around the same signal level - 20mV~18mV. So this could be better.Masurements are very basic, so are the triggers. No channel math.I did not find a way to adjust vertical or horizontal settings smoothly (uncal in Tektronix speak, Vernier in Rigol's) - it is always discrete jumps. So if you are trying to measure rise time, there is a bit guessing game where to place your cursors (for example at 10% and 90% of PK-PK).Conclusion.Would I buy it again for a portable scope with a "floating" ground? Yes, no doubt.Would I buy it as a starter scope if I did not have a benchtop unit already? No, not really. It would be better to save and buy a 1GS/s 100MHz desktop unit with better sensitivity and features. HO52 is not a replacement for benchtop unit.

Als je een klassieke oscilloscoop gewend bent dan kun je er al snel mee aan de slag, zeker met die "auto" knop er op.

Muy buen osciloscopio y multimetro, funcionamiento perfecto, las sondas y puntas de prueba de calidad, manejo muy fácil e intuitivo, muy preciso en las medidas, tiene un ancho de banda de 50 Mhz, pero se han llegado a medir puntualmente frecuencias de 60 Mhz sin ningún problema, su resolución es buena y suficiente para un uso normal, la auto calibración funciona muy bien, en modo multimetro funciona también muy bien, avisa con un mensaje si insertamos mal las puntas de prueba según lo que vayamos a medir, las baterías se pueden extraer y son faciles de reemplazar, son del tipo 18650 muy comunes y baratas, trae cable USB C y cargador. La pantalla se ve muy nítida y con buen brillo. Como puntos negativos la funda es justa, no permite guardar las sondas de osciloscopio, y no consegui que cargara con un cargador y cable USB C dé un iphone ni de un ipad, desconozco si con otros cables y cargadores se podría cargar, con su cargador y cable carga perfectamente. Resumiendo, el aparato me encanta, tiene una relación calidad precio extraordinaria y recomiendo la compra.

Ho acquistato questo strumento gia' essendo dotato di una discreta strumentazione per un uso fuori dal laboratorio visto che e' alimentato a batteria e nelle misurazioni con massa flottante in quanto una sonda differenziale costa uno sproposito. A volte uso i due canali mettendoli in ADD ma questo e' decisamente piu' comodo.La dimensione del display e' buona, il trigger funziona in maniera adeguata al costo dell'apparecchio, la calibrazione mi sembra entro i limiti, ho scoperto poi con sorpresa che funziona anche come capacimetro, ovviamente non per capacita' dell'ordine dei picofarad me nell'uso comune molto utile.La dotazione dello strumento e' ottima, sonde e puntali buoni, c'e' anche il software per collegarlo al pc (cosa che difficilmente faro' comunque il fatto che ci sia e' sinonimo di serieta').Il firmware a bordo rende intuitive tutte le funzioni, in ultima analisi sono molto soddisfatto dell'acquisto anche in funzione del suo costo decisamente contenuto.L'unica cosa che non mi e' piaciuta per niente e' la staffa posteriore che permette allo strumento di stare in piedi, la trovo troppo gracilina e inadeguata all'aspetto complessivo, lo strumento infatti si presenta molto solido.