Products > Test Equipment
What's the cheapest 0.02% accuracy handheld meter
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slavoy:

--- Quote from: miegapele on July 12, 2023, 06:58:47 pm ---RM303 (basically smaller AN870) as my primary multimeter. 

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Regarding the Aneng AN870, I compared my unit to the Siglent SDM3065X as a reference, and it performed according to specifications, even better (@DCV/mV range). The basic accuracy of 0.02% for a handheld multimeter is quite high and approaches laboratory-grade equipment.
If you want to maintain such accuracy, you not only need to follow proper measurement practices but also verify the DMM with a higher-grade instrument. Otherwise, that precision will be compromised, and the measurements will simply not be meaningful. I'm not sure why such high accuracy is necessary for you, but it's not just about buying the right multimeter.
Personally I don't see the practicality of buying a higher-grade DMM than this Aneng in terms of accuracy (only). I'm curious about what you actually need such accuracy for  :)
CosteC:

--- Quote from: Fungus on July 13, 2023, 06:58:21 am ---
--- Quote from: CosteC on July 13, 2023, 06:53:13 am ---I appriciate AN870 declared accuracy, yet I do not trust it too much in long term...

--- End quote ---

Why not? There's not much inside one to go wrong.

--- End quote ---
Lot of stuff already went wrong :)
1) Manufacturer does not provide anything remotly similar to proper specifications. What is long term drift? Nobody knows.
2) What manufacturer? https://anengmultimeter.com/ Sells clothing... Aliexpress shop?
3) Reference is only one thing among many responsible for accuracy. None is particularly recognisable or look stable

I do not say it does not work. It works. But will it work next year? Probably. Will it permanently shift after ESD zap or long term application of high voltage? Probably. Is it resistant to radio interference? Rather not.

Is it great for hobbyst? YES.
armandine2:

--- Quote from: slavoy on July 13, 2023, 07:29:25 am ---I'm not sure why such high accuracy is necessary for you,

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This reaction comes up on many threads - which always reminds me of Zipf's Least Effort book - bedtime reading  ;)

https://cseweb.ucsd.edu//~rik/foa/l2h/foa-3-2-1-1.html


In a mature society in which a variety of jobs and tools have existed for some time, a ``reciprocal economy'' forms. That is, there is a set of tools good for doing certain jobs, and there is a set of jobs requiring certain tools. The Principle of Least Effort asserts that a person attempting to apply a tool to a job does so in order to minimize the probable effort in using that tool for that particular job.
AVGresponding:
FWIW, my own philosophy is not to buy the cheapest I can find, but to buy the best I can afford...
MiroS:

--- Quote from: slavoy on July 13, 2023, 07:29:25 am ---The basic accuracy of 0.02% for a handheld multimeter is quite high and approaches laboratory-grade equipment.

--- End quote ---

0,05%+3 not 0.02%, the question was for 0,02% not for something worest.


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