Thank you for your comprehensive review. This is the best review of the AN870/ZT219/RM219. All of the other YT reviews failed to check its specified DCV accuracy of +/-0.05%+3. It'll be interesting to know how well it maintains its accuracy after 12 to 24 mths. This meter is very good value given its high resolution & accuracy. However, given it has less input protection than more expensive high-end DMMs means it should not be subjected to misuse or abuse - take more care with it.
Thank you. I still need to go back and check the frequency and duty cycle in the "Hz" mode and do a proper resistance test, but the multimeter is good indeed! And it's my second most used one (number one at home) since I got it.
I have compared the Aneng AN870 with a Siglent 3045X DMM (0.01% accuracy). I tested just DC voltage on a lead-acid battery (so a very simple test). The Siglent reported 12.226 V and the AN870 12.227 V. That was really a surprise, this cheap meter was really "spot on". However, AC, current, resistance or other DC-voltage ranges are not tested yet.
Thanks for performing these tests, i was thinking of buying that big red one ( RM 219 its from a different manufacturer but same specification same model)
The AC voltage measurement with waveforms other than sine wave is disappointing. The AN8009 performs a lot better. I wonder if this flaw has been fixed in newer editions of the 870.
For ANENG 870 during the test for frequency and duty Cycle I think you should use Hz % on the right side not the left one with AC symbol, this video of frequency and duty cycle is so misleading.... sadly.
@@ruevs Ah thank you for the respond. So is this multimeter able to measure the frequency of square wave? I wish to measure instrument with 17DCV Amplitude and work at 0~12kHz.
Hi, in you're video, when you test the An870 in frequency meter mode, you have the selector on the left side, what are the readings if you select the "Hz %" on the selector for the range ? At 48:40 and after when you say it is having trouble at 200KHz...
How is visibility of screen from side view of an870? i have an aneng an8002. it is very useful except of side view visibility. sometimes screen is shiny, sometimes is faded.
The .01ohm shunt is dissipating 4w at 20a load. Doesn't that small length of mystery wire get hot enough to affect its resistance? Is that accounted for in the software calibration file?
@@ruevs, in Hz /% scale it says "low voltage", but the manual has no reference regard voltage specification. Can i use the AC position to measure DC signals?
When testing frequency why did you not test it on the separate HZ% position please? Was there something in the manual you didn’t tell us? It seemed strange that you didn’t test that setting?
I have not tried it. Nominally 2*AA are 3V and a fully charged LiIon is 4.2V (it is ≈3.7V for most of its discharge curve). I doubt it anything bad will happen if you feed it 4.2V but you never know... Why do you want to power it from a LiIon? What's wrong with rechargeable NiMH AA cells?
@@ruevs I no longer have NiMH AA cells, but if I have a lot of batteries (LiIon) of the perfect size, so I would like to know if there is no danger of damaging the device
Good video. I know now which one i should buy. An advice , tests with ac voltage having a frequency above 120 hz are meaningless because the device was not designed for higher frequencies. I see they are not true rms because the measured voltage varies with waveform and does not match the HP DMM
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It will show high frequencies and duty cycle OK at the "hz/%" position.
I love so much this multimeter that if you do another +1-hour review about it, I'll watch it 3 times (eating popcorn).
Thank you for your comprehensive review. This is the best review of the AN870/ZT219/RM219. All of the other YT reviews failed to check its specified DCV accuracy of +/-0.05%+3. It'll be interesting to know how well it maintains its accuracy after 12 to 24 mths. This meter is very good value given its high resolution & accuracy. However, given it has less input protection than more expensive high-end DMMs means it should not be subjected to misuse or abuse - take more care with it.
Thank you. I still need to go back and check the frequency and duty cycle in the "Hz" mode and do a proper resistance test, but the multimeter is good indeed! And it's my second most used one (number one at home) since I got it.
I have compared the Aneng AN870 with a Siglent 3045X DMM (0.01% accuracy). I tested just DC voltage on a lead-acid battery (so a very simple test). The Siglent reported 12.226 V and the AN870 12.227 V. That was really a surprise, this cheap meter was really "spot on". However, AC, current, resistance or other DC-voltage ranges are not tested yet.
Amazing!
Super Teacher
Thanks for performing these tests, i was thinking of buying that big red one ( RM 219 its from a different manufacturer but same specification same model)
The AC voltage measurement with waveforms other than sine wave is disappointing. The AN8009 performs a lot better. I wonder if this flaw has been fixed in newer editions of the 870.
For ANENG 870 during the test for frequency and duty Cycle I think you should use Hz % on the right side not the left one with AC symbol, this video of frequency and duty cycle is so misleading.... sadly.
Correct. I did not realize this at the time. See the pinned comment.
@@ruevs Ah thank you for the respond. So is this multimeter able to measure the frequency of square wave? I wish to measure instrument with 17DCV Amplitude and work at 0~12kHz.
A few days ago I bought an an870 and I can also confirm that the resistance measurement is sometimes imprecise and the result is random.
good.
It is better if you put subtitles to be able to translate.
Thank you,
Hi, in you're video, when you test the An870 in frequency meter mode, you have the selector on the left side, what are the readings if you select the "Hz %" on the selector for the range ? At 48:40 and after when you say it is having trouble at 200KHz...
Good question. I did not try. I'll try it and let you know when I have some time, but I expect the results will be similar.
he chose the wrong symbol
Good video, thank you, these cheap Chinese multimeters seem to be a good buy and useful for all but very high end work.
nice
5x cheap than japan and europe brand, but only 0.1% different in accuracy.
How is visibility of screen from side view of an870? i have an aneng an8002. it is very useful except of side view visibility. sometimes screen is shiny, sometimes is faded.
The .01ohm shunt is dissipating 4w at 20a load. Doesn't that small length of mystery wire get hot enough to affect its resistance? Is that accounted for in the software calibration file?
I have not tested it. I think it is unwise to measure more than 10A for more than a few seconds.
Very good review, the resistance test must be redone.
You are right :-)
About aneng an870, What is the voltage limit for frequency and duty cycle measurement?
Theoretically the input voltage tolerance of the voltage input shold be 1000V irrespective of the measurement mode. But I have not tested it.
@@ruevs, in Hz /% scale it says "low voltage", but the manual has no reference regard voltage specification. Can i use the AC position to measure DC signals?
For such a low price multimeter, it is aimed for home or hobby use, not recommended for high voltage high frequency situations.
When testing frequency why did you not test it on the separate HZ% position please? Was there something in the manual you didn’t tell us? It seemed strange that you didn’t test that setting?
A mistake. Works normally on HZ%. See the other comments.
@@ruevs Thank you for your reply and honesty.
I’ve just ordered one.
how good is the true rms
In diode mode, if you short the leads does it make a beep sound?
No.
do you think the AN870 supports 3.7v, because I would like to use a rechargeable battery to power it ?
I have not tried it. Nominally 2*AA are 3V and a fully charged LiIon is 4.2V (it is ≈3.7V for most of its discharge curve). I doubt it anything bad will happen if you feed it 4.2V but you never know...
Why do you want to power it from a LiIon? What's wrong with rechargeable NiMH AA cells?
@@ruevs I no longer have NiMH AA cells, but if I have a lot of batteries (LiIon) of the perfect size, so I would like to know if there is no danger of damaging the device
You must connect 2 diode with lion battery consecutively
@Schwalbe262 "
the voltage drop across the diode". Google it.
Good video. I know now which one i should buy. An advice , tests with ac voltage having a frequency above 120 hz are meaningless because the device was not designed for higher frequencies. I see they are not true rms because the measured voltage varies with waveform and does not match the HP DMM
It would be nice a test with 60 or 50 Hz and different ac waveforms sine square triangle
From what i can dee they measure proper only sine wave, for the other the error is huge
The resistance test is really a shame. You should get some good bananas
@@gheorgheioan95 true :-)
Hmm this one or one of Uni-T UT61 versions ?
the Uni-T has more internal protection
@@dennis2494 Way more internal protection. The 870 has almost nothing.
If bangood approached me, I would do some videos for them.
It's a clone of Richmeters
RM219
As is obvious from the title of the video ;-)
But I think Aneng is the OEM.
Zotek is OEM
It's possible. But how do we know who really makes them? Zotek ZT111 seems to be the same as Aneng AN8008
Just a legit UNI-T ripoff. Just buy the real thing from the legit company.