HO52

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 really like the scope part of this instrument it is fairly easy to navigate with the function buttons. No other manufacturer in this price point does this that I know of. The display is clear and large enough to look at wave forms with illuminated grid lines and easily worked with (after the learning curve). These hand held scopes are not for a serious bench tech but more for a light look see to determine if what should be going on actually is. The controls take a little time to learn coming from a serious bench scope with knobs vs buttons but that is how they all seem to work. The portability is a huge plus. The VOM is pretty much standard fair for this type of all-in-one instrument. But, the capacitor measurement is non standard in its presentation. The value displayed is correct; however, the unit of m as in mF is non standard. Capacitance is measured in uF (microfareds) Sorry I don't have the greek letter for micro on my keyboard so I used a "u". You can see in my attached picture of it measuring a 470uF capacitor. It displays .4893 mF. If the non-standard m is for milli then the value would be .000489 Farad which is correct but I have never seen capacitance stated with m as in "milli farad". All the competitive units I looked at all used uF. The scope has the ability to be updated from an external usb source which is nice should the company correct this or any other issue in software which I hope they will do at some point. This may be a bit of nit picking on my part and granted I don't measure a lot of capacitors but It is a quality unit with very nice scope features and I just was so disappointed when I came across this. Over all a solidly constructed piece of gear with great features. Update: after using the capacitor measurement for a while I discovered that sometimes it shows micro farads and other times it shows m farads. Software needs reworked.

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.

The device is slightly larger than a multimeter, and noticeably heavier. It has an internal battery which is charged via USB; the charger, cord, probes, and carrying case are all included, no external components are needed to begin using the oscilloscope. Compared to a bench oscilloscope, the start up time is fast - about 1 second. Practically all of the features that one would commonly use on an oscilloscope are available and work as expected: AC and DC coupling (for trigger as well), 1x and 10x probe, XY mode, measurements, cursors, reference waveform, saving waveform or screenshot to file, bandwidth limit, and even a built-in 1 KHz signal for probe compensation. The layout of the buttons is convenient and functions are easy to find. The DMM mode runs independent of the oscilloscope and has relay switching for the V and mV ranges. The device appears well built and the battery lasts a long time (after 30 minutes powered on the indicator appears at about 80 %).

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?

It's a good multimeter and scope for the price. I like how I only need 1 piece of equipment and that it's portable. The screen is high resolution and easy to see in direct light or bright rooms. My only grip is that the controls can be a little clunky and not very convenient. The instruction manual is not not very good and filled with grammatical errors. Once you have it calibrated it's a good scope and multimeter though. Just make sure to charge it.

Convenient and easy to use. Screen is well lit and accuracy is generally good.

I like it, i've not used oscilloscopes that much, so i'm pretty new to them, however I was able to do everything I wanted rather easily. The only thing I don't like is that it is pretty hard to zoom in at look at a specific part of the waveform, as you move around in large steps both in scale and in position

Value for money. However, the function generator related option could have beenvery clearly indicated. It seems I did not select this option since the page clearly hinted that it is available - and it is not available.

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.

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。