HANMATEK HO51 Oscilloscoop-multimeter, 3-in-1 hand-oscilloscoop, golfvormgenerator HO51 met 3,5 inch TFT-oscilloscoop, auto-kalibratiefunctie, geheugenfunctie, multitester

Probably one of the most fun toys I've gotten myself in awhile. Love to tinker with electronic equipment and this meter/scope was a great performer.

allora, l'idea non è male ma nei fatti però il funzionamento almeno nell'esemplare ricevuto non era accettabile per l'uso che ne avrei dovuto fare; audio. Messo a confronto con il nostro MulticomPro le oscillazioni (lettura input ed output amplificatori e preamplificatori audio) sono risultate troppo irreali e tra l'altro con errori percentualmente incostanti. Passando al multimetro non è dichiarato e non è trueRMS. Insomma costa poco, vero, ma se non ci si può fidare, almeno nel nostro utilizzo non ha senso avere un portatile che lascia pesanti dubbi. Reso, servizio Amazon come sempre ineccepibile (5 stelle!)

This handheld oscilloscope from Hanmatek is a nice nice compact piece of equipment that offer a whole host of different features and functions, including a full multimeter as well as a portable oscilloscope. The device is really well made and feels rugged and sturdy in the hand. The large backlit screen is also a really nice feature of the device which provides a crystal clear display, even in low-light surroundings.However, I found some of the multimeter features a little slow to respond and provide positive feedback, with the continuity tester in particular proving to be a challenge to use. When the continuity test was positive, the unit took a very long time to register this was the case and provide an audible tone. Other meters I have used provide almost instant feedback, so switching over to using this device I found myself moving from test point to test point faster than the unit could respond, which is a bit of a concern.The voltmeter worked well, but took a couple of moments to initialise when selected - perhaps an internal procedure to drop any residual voltage from the circuitry, but a bit of an annoying delay all the same. My testing of the oscilloscope has been somewhat limited at this stage but I plan to use it when testing my older electronics and games systems, especially those that have crystal oscillators to regulate their clock speed. This is a component that has failed on me in the past but I had no means of testing.The good news is that this device can have it's firmware updated, so before I use it as part of my daily toolkit, I'll be sure to see if any updates are available and if some of the areas noted above are resolved.Overall a nice versatile piece of kit, just a couple of areas which could be improved.

Cet appareil portable comporte 3 fonctions: oscilloscope, multimètre et générateur d'onde. Le manuel fourni est uniquement en anglais et l'appareil est en chinois lors du premier allumage. Pour changer de langue il faut appuyer sur system>F2>F1 jusqu'à obtenir la langue voulu, dont le Français.On retrouve les pointes pour le multimètre, ainsi qu'une sonde. Avant d'utiliser la sonde pour faire des mesures, il faut la calibrer avec le signal 1kHz disponible sur le côté de l'appareil. On peut ainsi via une visse sur le connecteur de la sonde, régler la compensation et avoir un beau signal rectangle.L'écran est bien lisible et les fonctions facile à trouver, et on retrouve un signale lumineux sur le bouton play/pause (vert/rouge) pour signaler si le signal est en lecture ou figer.Il se recharge via usb de type c, le câble et le transformateur sont fournies.

Having owned, and lost a similar meter for a few years I'm very happy with this. It's at a similar price of one I purchased a few years ago the difference being the displays seems to be a lot better and higher sampling rates.As a multimeter it has all the functions you would expect and the clarity display is excellent. Where the benefit lies in this is the oscilloscope function.Primarily I use this for repairing astro equipment and also the odd vehicle and specifically for identifying faults on position encoder systems. The function generator (waveform output) is really useful for injecting square waves into the circuits and the oscilloscope for measure inputs etc. being able to do this in the field rather than having to dismantle and take to the workshop for testing is so convenient.A version of this is also available for higher frequencies. As I don't work at frequencies in the 10's of megahertz range this is ideal. I can't comment on the upper limits but you can find this and similar models being tested on various online videos so might be worth checking those out where they have undergone a bit more 'stress' testing if it's important to you.The scope is fairly basic in it's operation apart from adds the ability to save the data which can be exported and further analysed on a PC. The trigger is adjustable and limited to rising and falling edge although that is all I've ever needed 99% of the time.Brilliant device and does everything I need a scope for 90% of the time. I've a bench setup as well but this is just so convenient to grab and go they rarely get used since having one of these.