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DMT100B T-RMS Multimeter BT Android Datalogger

DMT100B T-RMS Multimeter BT Android Datalogger

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Product Description
A practical tool for electricians, hobbyists, and general household tasks, this Multimeter offers detailed readings. Its various functions include (but are not limited to) the ohmeter, voltmeter, resistance tester, temperature meter, datalogger, True RMS real-effective value measurer, and more Read More

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E.Wood
3
May 21, 2019
Any one noticed in one of the photos (5/7?) the display showed 220.7 with the test leads pluged in a outlet? That seems to be right in China, if it's not in DC and mv. What else in the specs is also a made-up?
Curby
77
Mar 17, 2019
Still available on Amazon for $40 shipped prime.
Djamar97
8
Jan 21, 2019
This exact product is listed on Amazon for $10 less, and I could have it in my hand in 2 days... @Massdrop Why would I pay more for something that takes almost 3 weeks to get to me??
GuyInPittsburgh
509
Jan 24, 2019
Djamar97For the fun of overpaying and waiting longer. Or, perhaps because of the sheer joy of buying from someplace where you're stuck with a plastic brick if it malfunctions instead of just shipping it back with no questions asked. Those would be the only reasons that I can think of... but if you're one of these people chances are pretty good that you're missing out on this deal in the first place because you're too busy shaving your head with a tactical cheese grater. Just saying.
dradams
2
Jul 11, 2018
Why would I buy this here instead of, say, Amazon? Almost identically priced.
sayingandparsing
21
Feb 21, 2018
I keep encountering items on here that are available for the same or a lower price elsewhere. . Furthermore, it parades the same limited set of products on a constant cycle. Unfortunately, my beloved Massdrop has become just another retailer, except with absurdly long delivery times and an inventory that's out of stock 3/4 of the time. Buy this direct from the manufacturer.
ChuckDee
1906
Jun 6, 2018
sayingandparsingOn certain things, I'd agree with you, but some things you can't find elsewhere. Caveat Emptor really applies when purchasing, especially as the discount they can give has basis in the deal that they can negotiate with the manufacturer.
bayareauser2
4
Feb 11, 2018
So my two pennies worth; I use two of the meters for comparative readings (its not always time based do you know) and the SainSmart android app works in my phones android 5.1.1 (can setup recording intervals, period, save and recall data) but only one dmm data, not both - you have to pick a channel. The same app doesn't allow data capture or measurement setup in Samsung Tab A 2015 android 7.1.1 so I tried OWON's app in the Samsung and it allows data capture (still only one channel) and measurement setup (time between each measurement, overall period of testing before shut down, save and recall data as csv). I think the 35 dollar blue tooth OWON dmm does mostly the same thing minus the semiconductor testing (anyone still plotting Q curves?).
HeyImTHATguy
2
Dec 20, 2017
Could I safely test capacity of 18.0v rechargeable batteries (e.g. power tools) that have been in storage for years with this? I was looking at a cheaper Craftsman multimeter yesterday that could only test smaller batteries up to 9.0v. thanks
Adragontattoo
109
Aug 18, 2018
IIRC, Isn't the 1kv/750v AC the max it can handle for an extremely brief time and not what it can safely measure.
Liberty
345
Jan 20, 2019
I do not know this particular MM so feel free to correct me. Generally, multimeters are not capacity testers. You will need some extra equipment and knowledge. You can only measure voltage of the battery. You cannot even measure the "current of the battery" because there is no such thing. Measuring real capacity is a bit more tricky. You fully charge the battery then discharge it, usually slowly, connected in a dummy load circuit. You have to measure the current, taking many samples, and multiply particular levels with corresponding time periods. If your circuit keeps discharging at a constant discharge rate, you do not have to measure the current - you know it. All you need is a stopwatch then. I think that, if you really want to measure capacity, you would think of one of these: https://www.ebay.com/itm/191883750242
https://www.ebay.com/itm/332494542442
https://www.ebay.com/itm/272563711537 ... and so on.
Motorrad
2898
Nov 7, 2017
Still cheaper direct from the manufacturer. They go on sale FTTT; I paid $39.99 shipped in July. Pretty decent RMS meter, but I'd still use the FLUKE for higher potential. I got it mainly for the bluetooth functionality with Android. App works very well. I've had zero complaints and I'm a big complainer...
A community member
Oct 6, 2017
These are made in China meaning don't believe a single thing in specs about it if you wish to avoid getting hurt. They should be fine for low voltage messing around and projects, but please don't use them for anything serious that can potentially hurt you.
Rebuswind
228
Dec 21, 2017
I do agree there are a lot really shitty quality products from China, I think the mean reason about it is due to the large number of things they produce. simply put it this way... 90% bad products out of 100 products is still less than 10% bad products out of 1000 products...I think it is good for you to try to warn people, but the way you could do it can be improved. by point out where it is made should not be in the first thing or not even be a thing. you should just stay with the products...it feels like you are saying this ' you have to be careful about those people, because they are black, they are more likely to do crimes' see the problems there? Anyway, I do appreciate that you talk like a civilized person and I really like that you do care about other people's well being and safety.
RebuswindTo be fair, there are a higher percentage of mislabeled and counterfeit products that originate in China because their government generally does not recognize US patent and copyright law. That said, any company selling those products in this country has a fairly high probability of losing money trying to import improperly-marked goods. Any time my life is on the line, I am going to listen to my own feeling as to what is safe for me to use, regardless of whether there may be an unfair bias toward products made in my own country or made by "my own people." ** ** Though I, personally, bias toward logic rather than any emotional stance. Still, I can't fault someone for choosing something because of some emotional reason if their life is on the line and they are willing to live (or die) by that choice.
nfetterly
84
Aug 15, 2017
t-audioHave to buy 5 of them to get it for $40, otherwise $58 from Chine, or $62 from USA.
I might bite on this.
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