HANMATEK Handheld Digital Oscilloscope 50Mhz Bandwidth with 2 Channels HO52 3.5" TFT Mini Oscilloscope, 2 in 1 Oscilloscope and Multimeter, Backlit Screen, Auto-Calibration Function, Memory Function

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.

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

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.

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.

Me ah servido para lo que necesito, Solo la batería dura poco

Good scoop for a good price