Handheld 3-in-1 Oscilloscope Multimeter Waveform Generator - 12MHz Bandwidth, 50MSa/s Sampling Rate, USB Lab Portable Automotive Digital With Signal Generator Kit

I bought this multimeter/Oscilloscope when it was on sale. I wanted to see if I could use it on generator engine sensor and CAN circuits. I haven’t had a chance to yet but I have preferred this meter over the others that I own. I like the amount of options. I’ve used the capacitor and diode options and they have worked really well. I’ll try to update when I use it during generator troubleshooting.

Muy económico y. Fácil de usar

This is a nice multimeter and oscilloscope all in one. I found it easy and intuitive to use. In multimeter mode it measured my voltage, current, and resistance reference standards well within tolerance. I found the continuity buzzer to be fast acting and useful. The min and max function in multimeter mode is also useful. My big complaint with the multimeter mode is that the input protection fuses for the current measurements are SMD fuses and makes replacement for the average user extremely impossible or difficult. Even for me it is an inconvenience that I would like to avoid. For the cost of this unit, easy to replace fuses should have been designed in. I have attached to this review photos of the inside of this meter and the SMD fuses.Another complaint is that switching into oscilloscope mode is not intuitive, holding down the “auto” button doesn't seem like the most logical button. I wish it was labeled or something. I found the oscilloscope easy to use and setting the time and voltage divisions to be easy and well labeled. I also like that moving the range switch to mV allows the volts per division to go below the 500mV/div in the V mode to 50mV/div. I was disappointed to find that I cannot change the position of the waveform on the display so measuring an AC waveform with a large DC bias will be difficult with this meter unless I am fine with putting it in AC coupling mode.As for the bandwidth claim of 12MHz, I think while technically that is correct the minimum time base of 200uS/div makes seeing anything over 1MHz difficult. I have attached photos showing a waveform at 1MHz with the minimum timebase of 200uS/div and a waveform at 12MHz with the same timebase. It is not possible to zoom into the 12MHz waveform to see it better.I also don't like that the meter will not remember the mode it was in when shut off and will always revert to multimeter mode when first turned on. I would like it to default to the last mode used.Overall this is a useful meter that I will be happy to use when an application calls for it. It is not the first multimeter I will reach for or even the first handheld oscilloscope I will reach for. However for the price I cannot recommend this meter. At the time of writing this review this item costs $100, there is a 30% off coupon but I am unsure how long that will last. For $70 I would much rather get the Zotek ZT-702S. I have this meter and it is very easy to use. The multimeter and oscilloscope functions are much better and give finer control. For the oscilloscope it has a BNC input jack that allows the use of scope probes. For $140 the ZT-703S is a two channel oscilloscope with 50MHz bandwidth. I have this meter too and it is also easy to use.If this meter was around $50 I would say it is a deal and worth a look but considering its price I think there are better alternatives for a similar or less amount of money. If you are considering this meter I suggest you shop around and read reviews on the alternatives, you may like them better.

There are several things that I like about this meter. I really like having a tactile rotary switch to select functions. I kind of like the gimmicky color changing backlighting to indicate which function you're using, although I'm not sure it's really useful in practice.But even the very simplest and cheapest multimeter needs to have socketed fuses. On this unit the fuses are soldered surface-mount components. This is absolutely unacceptable. A fuse is a protective device that's EXPECTED to be replaceable - and reworking surface mount components doesn't count as "replaceable", at least in my book.Even though it has some nice features, I just can't recommend this meter.

The screen on this device is bright and crystal clear. I have tested it as a multimeter and it seems reasonably accurate. I do have a mild concern regarding the leads. When measuring resistance you should get 0 ohms when you touch the leads together. Everytime I do so I get a measurable amount of resistance (~.5ohms). For higher voltage work that is negligible. But for 5v or lower control boards that could mean the difference between a proper and improper operation. This measurable resistance can be either from the leads or the unit's calibration. But considering I cannot find anywhere in the manual a way to calibrate it, you are left with a imprecise measurement.I admit that small variance is not a major issue in the mass majority of circumstances, and as such I still intend to use this device as my daily multimeter for the foreseeable future.The device itself seems reasonably built. Not quite as tough feeling as top end meters, but tough enough to bouce around a tool bag without worry. I have mixed feelings about it being rechargeable. On one hand it's nice to have the ability to charge it on-site if needed. But I also know how frequently in the field my battery powered meter would die and having spare batteries allowed me to get back to work immediately. So it all comes down to use case.For what you're paying for this meter, honestly it's hard to critique it much. It's a solid little device that should get just about any reasonable job done.