It's time for a new multimeter...

I'm sure this issue has been addressed here before, but I couldn't find an answer, so here goes:

I want a new multimeter.

Requirements:

  • Accurate and consistent measurements, good electronics inside, fused.
  • AC/DC voltage and current (I already have a clamp meter, but if the multimeter is clamp it is also ok), resistance, good LED/continuity testing, temperature.
  • No need for capacitance (I think), and I have no idea if I need frequency testing.
  • Battery internal resistance test would be appreciable, but I think these devices are too costly.
  • Auto ranging would be nice, but not necessary.

Can I suffice with an "Excel" http://www.manafont.com/product_info.php/excel-28-lcd-digital-multimeter-dt9205a-p-1307 or "Kejie" http://www.manafont.com/product_info.php/kejie-26-lcd-digital-multimeter-kj9208-p-1305 (any difference for me? does the first one not include temperature probe?), or should I go into a UNI-T like http://www.deal-cool.com/Product/Digital-Multimeter-UNI-T-UT39C.htm ? Maybe I even need (for the sake of accuracy) to invest a small fortune at a Fluke?

Any other suggestions? There are just too many and I have no idea what to choose.

I got a used Fluke off eBay for not too much money. The ex-(British)military ones are being sold off in quantity just now. There were a lot more listings for these last month.

http://cgi.ebay.co.uk/Fluke-25-Multimeter-Probes-Plastic-Case-/220754584663?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item3365ffa457#ht_1671wt_907

http://cgi.ebay.co.uk/Fluke-25-Multimeter-/330541780717?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item4cf5d34eed#ht_500wt_1156

Try a new battery in the existing meter first though.

Beyond that, I haven't enough expertise in these to add any more. But there are people around here who do, hopefully some of them will add their thoughts.

I'm also looking for a cheap DMM. $20 max. Found Excel and Xiole @ ebay for $10 or less. Are they good enough?

I also got some Fluke and UNI-T, it is cheap and good use.i want share this with you.

i look over your evaluating post and some parameter you described about the beamshots, then agree that it does the time to have a multimeter, here i may point out that there is no need to invest a small fortune.precision,reliable must be,and Test Lead must be durable.no need for the multifuctions.so you can try some entry class products:

http://www.deal-cool.com/Product/Digital-Multimeter-Xiole-DT9205A-Yellow-Black-Large.htm

http://www.tmart.com/A830L-Mini-Pocket-Handheld-Digital-Multimeter_p109545.html

http://www.manafont.com/product_info.php/excel-28-lcd-digital-multimeter-dt9205a-p-1307

So, after some searching (which wasn't very productive - budget multimeters is an extremely neglected topic on the web), it has basically come to choosing between the Vichy VC99 (a knockoff of the Fluke 17B) or some of the cheaper UNI-T, or a Minipa.

I haven't found almost any reviews for any of them.

The crazy guy from EEVblog reviewed the VC99 and found it is good crap or something. Well, he compared it with some Extech and AMprobe and some other not-very-cheap multimeters, and it measured quite the same measurements as they did, and did better with diode tests. The build quality was worse than the Extech and AMprobe, but these are ~50$ multimeters, compared to the ~30$ Vichy.

The same crazy guy tested a UNI-T UT61 (can't remember the exact model) with other ~100$ multimeters, and its build quality really wasn't good, even compared to the 50$ multimeters mentioned above. I wonder how the cheaper (~30$) UNI-T are constructed.

Here's a table that about summarizes what I found regarding the differences between the different brands, not comprehensive in any way.

pros cons
Vichy VC99 fused 20A, reported good accuracy compared to high end multimeters like the Fluke V77 slow auto ranging, continuity test not great, diode test not great (only lights up a cree, doesn't measure; lights and measures a standard 5mm), manufacturer's (?) site not working
Cheap UNI-T (e.g. UT39C) ok accuracy, well liked in the budget multimeter sphere (i.e. DX), official numbers slightly better than the Vichy mostly unfused 10A, build quality worse than the Vichy, not so many buttons (no relative measurement, no manual range setting, no min/max etc.), with the cheapest (e.g. UT33C) the V and mA use the same input
Minipa fused 20A, probably ok accuracy, official numbers about on par with the Vichy no extensive reviews I could find, generally more expensive than the Vichy

There's also Mastech which looks about the same quality of the UNI-T, but I haven't found much info on them.

What do you say?

http://www.manafont.com/product_info.php/kejie-26-lcd-digital-multimeter-kj9208-p-1305

I've got it from DX and later I bought better leads for it. Now it's perfect for me. The temp leads were included and work fine. I didn't think I would need these, but I actually use them quite often now.

Yup, that's the one I linked to in my first post.

It's unfused at the 10A, and doesn't have min/max or relative measurements which I think could be useful sometimes.

How accurate do you think it is?

Can it handle currents relevant to flashlights?

How good is it with testing LEDs? (only lights them up / measures voltage; useful for high power leds or just 5mm?)

How good is continuity testing?

Sound good. Could you try the LED test?

I'm still worried about the unfused 10A input. If a short would kill both the LED and the multimeter... not happy about it. If a fuse could protect them both (well, maybe the LED would die, but not necessarily) - could be better. Maybe I can install a fuse myself (if I buy the Vichy, I intend to replace the glass fuses by ceramic ones anyway, if possible; I think - should I?), but I don't think this is a good idea.

Easiest way is to buy used .. it used to be an easy pawn shopp item . means ebay is your friend .. I have two old flukes77& a 78 I didn't pay much for.takes a while to find a super deal but decent meters are out there pretty cheap compared to what people paid new . My friend gave me a harbor freight meter ...I was like Oh great a crappy meter I can beat up ...Nah it's such a piece of garbage I can't take it out of the packaging ......................i'm afraid it might come apart :)

I would've considered a used Fluke (or some other higher end brand) if shipping costs weren't such a killer... these are usually found only in the US, and with shipping (even First Class or Priority) it's more than twice or thrice the price I wish to spend right now.

I will probably get one of these as backup.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180614732447&category=11742&_trksid=p5197.c0.m619

It's got it all a flashaholic would ever need excepet a better dealer record would be even more nice. Granted this ain't FLUKE but does a flashaholic really need a multimater of that class? Can't find it cheaper anywhere else althrough ebay rips off the merchants by 10%.

It's VICHY AC97 which some dare to compare to Fluke 15B. I would not dare to say that but it probably is not your 3usd multimeter either. Thre is also the model VC99 but i don't feel the added expenses would be beneficial for what i need the tool to do.

Does anyone own one?

All DMM even the cheapest are accurate enough .The quality lie in features as sample rate, resolution , display info and such which are not key for no professional use. Enough display characters are nice to have , some of the cheap only show the numbers relying in the selector switch to know what is measuring, avoid those.

The diode function while could be use to check leds aren't aimed at that use, in fact is only to check the voltage drop through a semiconductor juncture, most below 3V, don't expect otherwise.

The Budgeter's one look good to me since has Temperature function, a must have..

And frequency can be nice to measure PWM if that is what it is needed to assess the PWM frequency in drivers.

Yeah, I was thinking the same, because I have dedicated stuff for that never used that function, right now I'll go to see if that multimeter's function work witch such waveform , many times this kind of counters only work with 50% duty cicle signal.

Perfect, both multimeters I have show 4.500 Hertz in the cathode connection of the diode with an AK-101 driver.

I use a harbor freight "Cen-Tech" mulitmeter. It came with 18awg leads and measures 2.96 amps with the 3mode manafont XM-L. It is pretty good actually

http://www.harborfreight.com/7-function-digital-multimeter-90899.html

Then I bought this 3 dollar one off ebay. It is pretty much identical except the leads are smaller and it only measures 1.52 amps on the same light! But when I put the 18awg leads from the harbor freight meter on it, it reads around 2.95 amps......so its all about having AT LEAST 18awg leads.

I decided to go for the Vichy VC99 @ DX ( http://www.dealextreme.com/p/3-0-lcd-handheld-digital-multimeter-voltage-current-resistance-temperature-2-aaa-37082 ).

GoodLuckBuy and maybe several merchants at eBay have it for 1$-2$ less, but I trust DX more (dunno why).

The deciding factor for it over the VC97 was the better low voltage range arrangement - the VC99 has 600mV/6V whereas the VC97 has 400mV/4V/40V, so for li-ions @ ~4.0V the VC97 would switch ranges quite annoyingly, I think, while the VC99 would stay at the 6V range (and I don't think I'd like setting the range manually to 40V, for the sake of accuracy).

I also would like to check the bar graph display. Could be handy (should be faster updating than the digits, if the range is set manually).

The VC99 also has a min/max mode.

It lacks backlighting and operates on 2xAAA, but backlight mod and 2xAA mod are reported in DX comments and user photos, so I guess I'll do them too sometime.

All that I now need is to replace the glass fuses by ceramic ones, but I'll wait till I get the meter for the exact dimensions of the fuses before I order some. (they're very cheap and provide far better protection to the meter and the user in terms of breaking current and breaking voltage, and also they break much more nicely, without spreading hot glass all over the PCB).

I'll tell you more when it arrives... can't wait. :)

looks like a good one! but 33 bux...ouch! I guess if your going to use it for many years to come it is a worthy investment but im too....frugal...to pay that kind of money lol.