Yeah, usually if they have a RTC chip, those have internal oscillators AND thermometers for self-calibrating ... but ... even for the crazy low low price of free, I wouldn't want a random stupid reading for some shit on my power monitor Aaaand, yeah, METRIC FTW
Hello. How come the output reading of a USB plug has 3 data? I am looking for a fast USB plug to be used as an adaptor to my rechargeable battery device. I have two plugs. Data as follows: USB Plug1 Data - Input 100V-240V ~50/60Hz 0.5A Output: DC 5V==3A / 9V==2A / 12V==1.5A USB Plug2 Data - Input 100V-240V ~50/60Hz 0.75A Output: DC 5V==2A / 4.5V==5A / 5V==4.5A Which is suitable and fast charging of two?
I haven't really looked into it but ... if you have a known solid 5.00v supply, a super good female USB (that's actually the tricky bit) ... you could just stick any load above 1a and measure the drop pretty accurately Or just have one of these meters measuring the voltage ... it'll give you very good ball park measures
on the slower refresh rate one with the smaller screen, it looked like u might have been able to see it chargin in some way by the voltage change from some inductance or capacitance effect im assuming, because theyre not shielded on the data lines at least not on any of the cheap cables iv used lol
Good review. Since Sept RD released a new model UM34C. Slightly larger screen display. An I think maybe a littler faster refresh. I could not get to connect to my phone (needs Android 5.0) but I did connect to a tablet (3 yr old Samsung Galaxy tab 4, 8 inch screen, Android 5.1.1). Displays all the meter's screens in about half the tablet screen, full control of the meter from the screen. The graph is more an aesthetic than informative. But no matter. The temp can be set either c or f. I like it because it tells me something about the temp on the circuit board. If it got too hot maybe I'd have run a fan across it. Rotating the meter screen is very helpful, but the meter's buttons don't follow the screen. Having the display on the tablet does away with that problem. I can page through the meter's screens from the tablet, but since all the data is on one screen on the tablet, not sure why I need to page through the meter's screens. i also use a Trip Lite adapter (UR024-000) to make sure the meter screen always faces me. I think maybe a USB c adapter would work just as well.
I really wish the UI were made better on the device itself On mine the buttons did follow the rotation though, are you sure yours don't ? The only beautiful UIs I found on 100$ USB power monitors ... which are really ridiculously priced
For me, qc 3.0 trigger would absolutely make sense because i have this usb fan at work, it is 5V 600mA rated and if there's really hot, and it usually is, i'd really love to pump there more than that.. a pity here in CZ you cannot buy this YZ but FNB48 seems to be the very same-like and has also this trigger.. it's costly but what is not.. this UM34C cost me 1100CZK so.. edit: YZ's inputs/outputs???
@@Darieee actually I saw another video on the Ruideng 34 with blue tooth on it.. got it from Bang good.. 15 bucks! I love these new start up places there prices are so reasonable.. amazon had the same for 27 bucks... Still don't like the way it coughed out at just under 4 volts.. But! the blue tooth addition makes up for it.. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wyoxHEbhyfU.html
A bit late to the overview of both of these devices but I ended up with the much cheaper UM25C. The smaller screen space for useful information is not a consideration for me, having it linked to an Android device is simply amazing and gives you much better control and graphical information. I think that both Android and IOS is now supported. I haven't bothered as yet with the PC app. One button on the ZY1276, ha that has to be a deal breaker for me. Goodness knows what is going on there with a unit costing so much. Nice that it doesn't cut out at the lower end of the voltage but that wasn't enough to convince me to part with that much money on what I considered to be an inferior product. There are many reviews of the UM25C as well, demonstrating how accurate that its measurement seems to be. Your point system seemed good but for the cost vote I would have awarded the UM25C double the points for being less than half the cost difference, it wasn't such a small margin. Altho I have also ended up buying a TC66C as well, still waiting for that one to arrive, another vote for a Ruideng testers. Thanks for sharing your review.
"if you have one of those shitty LCD ones..." -me. LOL My portapow LCD one has been running for years pretty much 24/7 attached to a multi-port charger but it is way limited by comparison. I bought the UM24C, and it's pretty freaking cool. Have not used the PC app yet, but BT on android does what it is supposed to. Good video!
hmm, that does indeed look quite nice with that big screen ... still has the temperature reading ... humanity is not quite evolved yet to not add useless shit on their UIs
at 31$ though I'll probably pass ... had it not had the temp reading, I would have genuinely considered it; thanks for the heads up though! this wasn't known to me when I got my YZXStudio half a year ago
@@Darieee It's a bit expensive. But it's the most complete all in one tester on the market. Also you can connect an external temperature sensor and place directly on your phone/device. Not bad.
What you fail to mention (however) is that the YZ1276 on the some screen pages it mixes Chinese (That people do not want to see) with English and that is a deal breaker for some people including myself. Why would you want to see Chinese mixed up with English ??? Someone please correct me if I'm wrong ??? Is there a way to completely get rid of on screen Chinese language ??? I won't know for sure since I don't own one but what I do know is the fact that almost every seller that has it (if you look @ all pictures within the advert) almost always @ least 1 picture shows Chinese on the screen and is a little counterproductive and annoying if you ask me.
Ovi Bucur is a FUCKING IDIOT. The UI of these meters is EITHER English or Chinese. None of them "mixes mixes Chinese (That people do not want to see) with English". Are you really so stupid not to understand that the adverts may be showing you both choices?
I don't trust myself enough to go that far ... but yeah ... might one of these days! am super full with uni though so, one of these sometime in the future days more likely
Another review of a RuiDeng showed that it has components that could get hot. I think that's what the temp reading is for: if it gets too hot, you would want to disconnect it to make sure it lasts longer.
strongly doubt it -- one of the chips they use has a temperature sensor built in ... I really forget which one, .. and they all refuse to waste that "feature"
thank you very much for your fair comparison , if you compare APP and widows software, it will be better for IOS app, we are designing for other function, you did not compare for 4V, because our range is 4-25V, lower 4V, we don't allow to work, because we have power off storage function, so YZX did not have ... you should know this too if you conpare all the feature, I can make sure it not 5:5, our meter should win and lead more
I like the RD Tech one more, the four buttons are an gigantic advantage. 4,000V Range is also enough for what ist used for. If you go under 4V something is wrong. But i have to say the refresh rate of the YZX is great.
because THEY ARE THERE that number doesn't mean jack shit -- you can calibrate it but ... yeah ... didn't ... and I was and am pissed off because a wrong reading was and is cluttering up my UI
This review is a joke and full of opinions and omissions. The bottom like the cheaper one is the best value. The larger display is not always better. I've accidentally mis-recorded a reading once because a display was uniform for several categories. Most arguably will use this for current and amp draw so making those larger makes sense. The temp display is for the devise. It is very possible to have a large variance between two different models due to design and efficiencies. There is nothing stupid about protecting your equipment and knowing it's temperature. Quick charge category not really important, but you gave a point to the more expensive unit. @12:00 Based on how you reviewed these items, the screen off function is much better on the cheaper one. A single button press over having to scroll thru all the screens. But no point to the cheaper one. The "slower" boot screen on the cheaper was a big deal to you. How often are you in such a hurry that "instant-on" is so critical? I could go on, but this now bores me. Learn to be more "technical" and less subjective in your reviews.
Actually on ZY1276, if you go to the 6th screen (the one with only 3 big values, voltage, current and power), and long press the button, it will rotate. 4 orientations available. Once you change orientation, other screens will also use that orientation.
I think you forgot that when you cascaded them that the device itself consumes power. This would be why the RuiDeng cut out and the the YZXStudio continued to measure... the current consumption of the RuiDeng. Just a guess but the test should have been conducted with the devices cascaded in both ways as a minimum.
Rather than a numbers scale for score it would have been great to see a comparison list in dot point form, eg, instead of awarding a point for price to the cheaper unit, show the price for both on screen under the left and right headings. The points will not help anyone decide on a purchase.
It click-bait at it finest. These USB testers are still very good for what they are? I tested them on a Analogic Data Precision 8200 DC Voltage-Current Standard Calibrator and good 6 1/2 meter just restored and had sent out for calibration and that UM25C is pretty much bang on. Actually quite surprised for being a cheap Chinese tester. It small size and how accurate they are I recommend them over others that this form factor. Especially useful for the more serious phone repair techs looking at current draw and testing cables, charger ports and motherboard current draw. I stop counting how many time I seen less competent repair techs guess and throw parts at a phone charging a customer over $100 bucks even, when it turns out to just be a bad charger port, failing battery, or even the cable itself. I do component level micro-soldering repairs and data recovery on most phones. Last customer they told him his motherboard was bad and phone was unrepairable, so he bought it in to see if could repair the motherboard to recover at least the data and it turned out it was just his charger port was a piece of food was in charger port and phone was fine, of course I had to undo the botch work the other tech left and replace all the missing shields and screws. Hint other tech sure have at least tried another charger port if he wanted to guess. Had zero clue why he felt the need to replace the battery when phone was pretty much new and loose half the screws and all shields in the process?
Temperature sensor is useful if attaching a solar panel. A stupid amount of heat can actually travel down the wires from the panel. China wants to be 20% solar, Germany is going all in 100%.
