Hi, i recently asked for advice on buying an 200€ class multimeter and with your help i decided to get an agilent U12421B, so i figured i do a short review.
I won't go through any measurements, because i don't have any precision voltage sources and so on to actually judge it's accuracy so I'll have to rely on the cal certificate which tells me it's well within spec. So I'm just gonna point out what i like/don't like. if you have any further questions or want something tested, just drop me a line and I'll see what i can do.
Pros:
- comes with a cal certificate, which gives a lot of confidence
- crazy fast update rate
- just feels good. i actually like touching the thing, plastic feels very solid
- case is held together by threaded screws in metal insert which is nice
- specs are pretty nice. 10000 count 0.09% base dc accuracy
- atm it comes with the bluetooth adapter, because of a special offer. Haven't done much with the android app, but it seems very decent
- the tilting bale is actually totally usable. you can knock it over if you try, but generally it just works.
- doesn't slide on the bench when switching ranges
- runs on AAAs. YMMW but i kinda like it
Cons:
- Range switch is a tad small, might be a non-issue for you, but for my sausage-like fingers it could be bigger
- if you want to change the 10A fuse, you not only have to open the meter, you actually have to remove the pcb, because it's on the top side. Now that's just stupid
- you need an adapter bracket for the bluetooth module. It's not overly expensive but it should come in the box imho.
- it does temp but it doesn't come with a probe. tight asses.
- continuity is pretty damn slow. not quite unusable, but close
Conclusion:
I think for the money it's a really good meter. Sure it has it's cons but they all do, you have to decide whether or not on of them is a showstopper for you.
the specs are quite nice and it feels really nice which is quite important for me. i mean you're not gonna use any peace of equipment much if don't like to touch it right?
I suppose you could get similarly spec'ed meters for less, but with the agilent i#d bet money on it still being good in 10 years time. I'm probably gonna get another one of these. Or maybe a 1272A I'll let you know.
To finish it off, here a few pictures.
Edit:
moved the thing about the AAA to pros, which is where i meant to put them in the first place.