HANMATEK 3 in 1 Handheld Oscilloscope Multimeter,Waveform Generator HO51 with 3.5" TFT Oscilloscop, Auto-Calibration Function, Memory Function, Multi Tester

It is a neat little instrument. Bought it as a cheaper alternative to a automotive scope, (Hard to haul my Tek scope out to the car) I am used to "old school" scopes with knobs for horizontal time and vertical voltage functions. This one is a bit different, not completely intuitive when it comes to changing parameters. The online manual was not working correctly when I bought this. For the price it does work well, and is just as convenient as my Fluke hand held multi-meter. I still prefer my Tek bench scope, but it is cool. Battery life is good and it's still happy months since I purchased it. It came with decent scope probes too. Good buy.

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.

I gave it an overall score of 4, because of the learning curve. Other than that, it has a 5 star. Accuracy....Well, I turned the generator back onto the scope itself and did some measuring. It jumped all over the correct frequency. I was hoping a little more stability in reading the frequency when it was supposed to be fairly close. I tried a regular house hold frequency, it was Plus or minus 2hz. Jumped all around 60hz. Generator worked, Scope worked, Multi-meter worked. I couldn't manually set the "scale" on the multi-meter. It only seemed automatic. At the same time, maybe I just couldn't find the manual setting in the Multi-meter mode. (Part of that learning curve if manual mode exists). Ease of use, I gave a a low value because of the learning curve. I would finally figure it out in about 1 hour, but the next day i would have to re-figure it out again. It seemed they tried to make it like the fluke 123, but it just isn't as easy to operate as the 123. I believe after the learning curve, it will be a fantastic meter for the money. I think you will have a meter well worth the money you paid. Though I gave it a low Ease of use, do not be discouraged by the value. It is actually quite easy to use, just a little cumbersome to learn how the meter works in the first place. Once you learn the meter, ease of use is nice. I would recommend this meter to other people. I suggest that the people who purchase this meter be familiar with both Oscilloscopes, Multi meters, and Generators. If you have used flukes like I have most of your life, it will be frustrating learning this meter at times. But hang in there, these meter does a fine job. The manual is basically worthless....But no problem for those who have worked with scopes, multi-meters, and generators before.

Have been using Scopes many years....Since this scope does not have controls marked as a standard analog scope ,you have to learn what the function buttons mean in correlation with an analog scope. Some things you cannot control, but in the auto mode they are workable. So far I have had a learning curve in regards to Buttons and what they do when and where. So far this Scope seems OK and is compact and well built. I am enjoying the learning cure as far as buttons and functions. For the price this little GEM Comes with hi quality probes and accessories. It's a Great buy and you get quite a bit of power in the little package. Just wish the controls were the same as an analog scope for ease of operation. But like an old dog ..I can learn new tricks.

I purchased this oscilloscope to tune my car's audio, since I was not satisfied with the job done by the stereo shop. For this purpose, it was great! It picked up the test tones generated by my car's stereo like a champ, and the auto function was useful to scale the display. I was easily able to see the clipping point of my car's stereo. Also easy to measure the clipping point of my car's amplifiers. I have to admit I didn't use the device's voltmeter function so I can't attest to it's accuracy. Thanks to this oscilloscope, I was able to determine that my stereo shop did a horrible job with the installation/tuning, causing my system to clip like crazy at moderate volume levels. I wonder how many people out there have bad installations by their stereo shop and don't even know it?

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.

J'ai longtemps hésité sur le choix d'un oscilloscope “pas trop cher” avant de m'arrêter sur celui-ci, et je crois que j'ai fait un excellent choix : il tient dans la main mais il a tout d'un grand ! C'est un véritable oscilloscope double trace avec une bande passante de 50 MHz, et non pas un “multimètre évolué qui fait vaguement oscillo”. Il est précis, agréable à utiliser, facile à prendre en main et on trouve assez vite toutes les fonctionnalités désirables dans les menus. Je ne trouve vraiment rien à redire. L'écran est également très lisible. La fonction multimètre apporte un plus appréciable, elle est bien conçue et simple d'utilisation, bien que ce ne soit pas la destination principale de cet appareil. Pour reprendre une critique que j'ai vue dans un autre commentaire, et la seule que je puisse faire : la housse fournie gagnerait à être un peu plus protectrice et surtout un peu plus grande, dans l'état on peut y ranger les cordons du multimètre et le câble USB plus le chargeur, mais les deux sondes du scope n'y entrent définitivement pas. Dommage ! Mais bon quand sur ce genre de produit on n'a que la housse à critiquer ;) Dommage aussi que le modèle intégrant un générateur de signaux soit considérablement plus cher, mais bah je préfère un bon scope sans générateur de signaux, plutôt qu'un mauvais avec.

Good as multimeter, oscilloscope and signal generator.

Ich nutze das Gerät hauptsächlich zur Diagnose von Komponenten an KFZ, dafür ist es dank der Portabilität perfekt geeignet. Der Akku hält lang genug für meine Zwecke und da es USB-C hat kann man auch easy mit der Power Bank vom Handy einfach nachladen. :) Die Steuerung ist etwas gewöhnungsbedürftig, aber sie ist grundsätzlich gut designt und wenn man schonmal ein Oszi bedient hat kann man sich recht schnell reinfuchsen. Das einzige was mir fehlt ist eine klare Beschriftung der Achsen was Zeit/Spannung angeht, somit muss man immer mühsam mit dem Cursor rumwerken um bestimmte Punkte der Kurve zu sehen oder an den Pc gehen... Alles in allem aber Top, vor allem für den Preis 👍

小型、ハンドヘルドオシロスコープ。 計測機器メーカー製だと、約２０万円～の商品カテゴリです。 中国製ですが、性能は大満足の一品でした。 取扱説明書は、若干不親切です。 付属の 10:1 プローブは細身で少々使いづらいです。