HANMATEK 110mhz Bandwidth DOS1102 Digital Oscilloscope with 2 Channels and Screen 7 inch / 18 cm, TFT-LCD Display, Portable Professional Oscilloscope Kit with 1GS/s Sampling Rate (Not for Medical Use)

Per the advertised specs this thing is amazing for the price. I'm just a car mechanic so I maybe can't judge it as thoroughly as an electrical engineer, but for my use case it's awesome. The few other auto techs I've worked with that consistently use an oscilloscope for diagnostics use very expensive tablet style scan tools and very expensive obd2 dongles and instead of this little stand alone bad boy that costs less than the dongle you need to do O-scope stuff with an autel or snap on scan tool. As far as function, the wall wart to laptop-style barrel connector power supply is less than ideal, but it has never failed for me. I love the knob controls for the time window and voltage range settings vs tablet based touchscreen inputs. I pretty much only use it to monitor 5V /12V hall effect speed sensor waveform inputs for engine, transmission, and abs sensor signals and maybe a coil or injector control circuit for the one time in a hundred it's not obviously just a bad coil, injector, or circuit. Not really a must have tool for some car mechanics but for an decent diagnostic tech it's almost a necessity these days and this is a very good way to get a stand alone O-scope in your tool box in a package that also happens to be a very cheap, good looking, and effective.

This appears to be an amazing instrument and has features we never dreamed possible when I was learning electronics in the 1960s. It would have been perfect for my hobby use. However a couple months ago, I got pulled out of retirement and my requirements became professional again. I bought this product but I discovered it uses an 8 bit A/D converter which means there are only 256 vertical data points on the screen. This is alright for a beginner or a hobbyist as the price is the most important thing. I recommend it for those applications. But for the R&D I am getting paid to do, I need 12bit or better A/D to get the necessary resolution. I had not even thought of this until I saw the display. I had to return it and bought another instrument for twice the price with no additional features other than a better A/D converter. Pity. It is really great otherwise. For learners where price is all important. All that work to engineer a great product and to blow it in economizing on one chip inside, relegating it to the hobby market. Likely done on purpose because otherwise there would be no incentive for pros to buy a more expensive instrument. But hobbyists and students, go for it as it will be a wonderful learning tool for not a lot on money. The cheapest full feature scope possible.

Repond exactement a mes besoins. Excellent prix.

Does the job, is easy to use, the size is perfect; and if needed can be used with a external battery, the display is ok, for the money 100mHz 500Sa is great if it last !

I use HANMATEK products every day in my work, Digital Oscilloscope, Digital Multimeter, DC Power Supply Variable & Soldering Station, to whom I place all my confidence and security. I recommend their products to anyone starting out in electronics without hesitation.