At ~$2.5 this is possibly the cheapest multimeter. This one is not new and surely was reviewed already somewhere and perhaps in more detail. I'm only taking a quick look with some images and very basic test results.
I got a damaged unit, so I am presenting it without the plastic cover. I don't know if functionality is also affected. Things might work different or better with an undamaged unit.
Size:How does the size compare to a price-competitor DT830D?
We can see that the MF is quite smaller. This might make it harder to read the values, however. On a digital meter, this shouldn't matter nearly as much.
Probes:The probes (on the right) are quite a bit smaller than standard probes that came with a Mastech multimeter which I'm using with the DT. We'll have a close up look at the the probes later.
(The hot glue is not factory).
Feel:DT830's build quality feels better overall.
How about some readings:These could be subject to a bit (or lot) of bias. I did calibrate the meter using the front screw, and for resistance measurements, the pot. But, it's not very easy to read values, especially small values, e.g. 2.25 or such, which would be no issue on DT830.
I'm also using a simple step down module to get a voltage regulated power supply.
Consider all of the readings as my guess on what the displayed value is at the time. Someone else might read the same values slightly differently.
Power supply | DT830D | MF110A 10V Range |
1.1 | 1.24 | 1.2 |
2 | 2.1 | 2.2 |
3 | 3.1 | 3.2 |
4 | 4.08 | 4.2 |
5 | 5.07 | 5.2 |
6 | 6.11 | 6.2 |
7 | 7.08 | 7.2 |
8 | 8.09 | 8.2 |
9 | 9.05 | 9 |
10 | 10.02 | 9.55 |
11 | 11.06 | 10 |
Note that the meter was slightly out of calibration after testing (needle points slightly below 0). I'm not 100% sure if this changed during the test, or was an error on my part.
Resistance (some random resistors)
DT-830D | MF-110A X10 | MF-110A X100 |
984 | 100 | 8.5 |
39 | 3.25 | 0.2 |
Resistance (B10k pot)
DT-830D | MF-110A X100 | MF-110A X1K |
9.6k | Between 110 and 120 | 7.9 |
The results are not absolutely stable. Before writing down the data, I did tests with somewhat varying results. But, I was also learning how to use the meter, so it's questionable whether the meter is unstable or not, and that would require possibly a lot more testing.
Images:Outside:
Inside:
PCB Various components
Does anyone know what the white stuff is?