I am looking for a high resolution, multimeter for ME, because i deserve it.
But not too expensive, I not rich enough to avoid what I truly deserve.
The meter or dso should ideally be able to measure and record.
It should have at least 4 or 5 digits of precision.
It should be able to measure less than 1uA and more than 30A (induction probes perhaps)
It should be able to measure less than 100uV and more than 750V ( isolated high voltage probs prerhaps)
It should be battery powered, at least for a short time.
Display time resolution 250 ms, storage time resolution 0.1ms
Precision and high current don’t generally go together. Your 30A requirement will probably have to go to a dedicated clamp meter or you will need to separately purchase a high-current shunt to use with the main meter if you prefer inline measurement.
Most of these requirements aren’t too difficult to find. The datalogging requirement (I guess that’s what you mean by “record”) might complicate things. Do you want a meter that has internal data storage, or are you okay with “record” meaning tether to a PC and run software to log the data?
From the big and high quality names, the cheapest options that tick most of your boxes are (assuming you want internal datalogging, you can go down a fair bit if you relax that):
Agilent/Keysight U1272A - 30,000 count, 0.05% DC accuracy, 10000-pts internal datalogging, meets all your measurement requirements except current limit of 20A for 30s or 10A continuous. Close to $400
Fluke 287 - 50,000 count, 0.025% DC accuracy, 15000-pts internal datalogging, graphic LCD that can do trend charts, meets all your measurement requirements except current limit of 20A for 30s or 10A continuous. $425-ish
I don’t know of any less-expensive alternatives with full data logging. However if you’re willing to connect to a PC for that, there are quite a few good options. Give us an idea of your budget and I can offer some. Agilent U1231A comes close, but 600V maximum.
Another interesting option is the Brymen BM869. Not really a well-known name, but they are Taiwanese, do their own designs, and build things well. They have a good reputation on and you can find some YouTube videos that go over it. With the data logging cable it’d be about $220 I think. But the guy who normally sells them on eBay is on hiatus right now due to the status in Hong Kong so might be a bit before you’d get one.
I have the Agilent U1253B, which is a bit up in specs from the U1272A - one of my favourite features though is the Bluetooth addon, which lets me remotely view its output on my Android tablet (it looks like the latest version supports iOS also now), including graphing data over time.
The high-end of your current range isn’t the only problem; the low-end you’ll have problems meeting also. Dave Jones (from EEVBlog) created his uCurrent device to get around this limitation of multimeters.