NTT- The Klein ET910 USB tester

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For testing USB sockets, power supplies and connected loads!
The ET910 is now available now from CEF. For a basic USB inline monitor, albeit not exactly the same as mine, see this Amazon affiliate link: amzn.to/2ULmdmy
This video is unscripted, so there may be errors. And yes, that is an old central heating controller pretending to be an electricity meter in my mock setup. No expense spent here folks, I can't afford it when I blow sixty quid on toys like this!

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Опубликовано:

18 мар 2019

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Комментарии : 74

@smaltais417 3 года назад

Even 2 years later, your Vid is still very useful and thanks for this complete and detailed review. As of now, this instrument sells for 66$ on Amazon Canada and I agree with you that its is a bit expensive for such a restricted feature set. The fact the instrument can't sustain the application of the load for a long period makes this instrument kind-of useless. It would be great to apply a steady 2 Amp load and hold the load on the USB with the instrument to perform a proper test. Would also allow to test battery capacity in Ah. Holding a steady load for a little time will make the port "work" a little bit so you can figure out flaws on a port when its under load for a cetain period (overheating for example).

@123mikeyd321 5 лет назад

Good video of a useful tool. I would like to add though, that the data lines in a USB cable are used to tell the charger how much to limit the current. (Ignoring USB-C oddities and QC quick charge etc. for now) They don't do this by using the proper USB serial comms, instead, the device (ie. phone) presents a resistance between the data pins and +5V which the charger senses. Now, some cables only have the 2 power cores connected end to end, so the charger should go to a default low output (I think usually 100mA). Some (naughty) cables only have 2 cores connected end to end, but resistors in the plug at the charger end to fool the charger into upping it's output even though it doesn't know what the device is really capable of. There is more to it than that but I'm just saying there is more to it than meets the eye and it isn't completely right to say a cheap cable charges slower because it has a higher resistance.

@dsesuk 5 лет назад

Thanks Mike, who'd have thought the humble USB cable could be such a can of worms??!

@HenryLoenwind 5 лет назад

@@dsesuk BTW, no amount of resistance in the power lines of the cable can account for a difference of 1A in charging---especially not at the source. Such a cable would dissipate the extra power as heat, making your phone charge slower put the meter would still see a full load. So what you said around 10:00 is wrong. Weird to hear that urban myth repeated by an electrician. But extra resistance on the data lines, or missing data lines, or data lines fixed to special resistance values would change what the phone senses the charger can provide. Another common issue here is that Apple and everyone else are using a different signalling scheme here. (Apply was fist and then the rest decided to make a standard that was incompatible with what Apple already had. The usual "we are late to the party so we need to ruin the fun of the people who were there on time"...)

@mowcius 5 лет назад

Monitoring the mAh that goes through the meter during a full charge is quite a good way of determining whether or not a device battery is completely shagged or whether there is another problem. A marginally useful feature for sure, but one that I've used a couple of times.

@markpunt9638 Год назад

Handy, convenient but pricey. Thanks for sharing your review

@magnets1000 5 лет назад

They should have just made it ramp up the current until the voltage drops below USB specs and just tell you the max current it was able to deliver.

@ollieb9875 5 лет назад

The other little device shown, £5 or whatever, they have passthrough as well, you can buy little adjustable loads to plug in and gradually ramp them up to see how many amps the supply voltage starts to drop. I think my adjustable loads come from eBay or some Chinese supplier for under £5

@MysticShiv3r 5 лет назад

Shout out to you too mate!!

@dsesuk 5 лет назад

Whoop whoop!

@delspark 5 лет назад

another tool that might not need but will probably get lol thanks for the vid

@plateauelectrical8393 5 лет назад

Do you think there's a possibility that some USB ports would fail after a few minutes. Is there a good way to test that with it? Like a sustained 2a test?

@dsesuk 5 лет назад

It's a good question, it would be nice to have a sustained test, I'm not sure why this model times out so quickly on the load tests.

@hannahranga 5 лет назад

Definitely, I've found that with the ones installed at work. They'll give you 3A plus (was charging a 20Ahr battery bank) for a few minutes then overheat and be shit. I'm assuming they limited it to avoid having to deal with all heat and making it failsafe/idiot proof.

@markyd2633 5 лет назад

Yep....another good one...Thanks

@acelectricalsecurity 5 лет назад

be nice if the power to the usb worked with the switch for the socket

@dsesuk 5 лет назад

There ought to be some way to isolate it. If it were an external thing, you wouldn't dream of spurring it off without a 3A fuse, but you can do nothing when it's directly built into the socket outlet.

@plateauelectrical8393 5 лет назад

I feel like that would get more annoying if you wanted to use the USB port but not what was plugged in

@acelectricalsecurity 5 лет назад

@@plateauelectrical8393 most of the time that's not an issue, might be an occasion when that could happen, but it's not good that these things are on all the time, and using the switch seems the simplest solution, unless they could fit another one for the usb only outlets

@andrewmayes3271 5 лет назад

Definitely needs to be half the price wish you could have tested a 3m usb lead they were selling at Manchester elexshow

@CaptainK007 5 лет назад

I am looking for a good all round battery tester and liking Megger gear, the Megger Torkel 900 looks quite good and would make quite a good new toy Tuesday test. Any chance?🤔

@dsesuk 5 лет назад

Crikey, that costs more than my van! It's not something I would have a use for I'm afraid.

@CaptainK007 5 лет назад

I nearly fell off my stool. 13k I’ll stick with my Halfords resistor cooker box. ( for my sins Marine electrical/electronics, always being asked to “check the batteries” and wanted to give a bit more info than ok or duff) enjoy your vids.

@dsesuk 5 лет назад

@@CaptainK007 I guess my little 30 year old Tandy battery tester wouldn't do the trick then??! It does double-A's and 9V PP3's!

@CaptainK007 5 лет назад

😂..... nah

@davidroche6973 5 лет назад

Oh that looks better than my current tester. Am using a uni-t tester, and a pre made load (resistors) with selectors for my sins 😃

@dsesuk 5 лет назад

Oh, I don't know, that Uni-T tester and some switchable resistors sound just the job, and a fraction of the cost!

@Sparks0001 5 лет назад

Is that bonding just connected to a short piece of pipe clipped to the wall!?

@dsesuk 5 лет назад

It's a demo setup I use for my videos or when I have work experience people in. It's just there to show test procedures.

@Sparks0001 5 лет назад

@@dsesuk Ahhhhh, right, I thought it was someone being stupid, like you sometimes see people bonding plastic pipes! - I guess that explains what looks like a central heating programmer after the service head too :) - I have only just found your channel, keep up the good work :)

@dsesuk 5 лет назад

@@Sparks0001 Yeah, I really need to change my fake "meter" for a real one, it ain't fooling anybody!

@Khanjan-si8me 5 лет назад

Hi can u plz help me by sending name or any Number for ikea snake mica light thank u ..

@dsesuk 5 лет назад

www.ikea.com/gb/en/products/lighting/work-lamps/jansj%C3%B6-led-usb-lamp-black-art-70291232/

@finnsagg5264 5 лет назад

I love Klein tools I am from the uk and have a rare set of insulated linesman pliers from 1989 which dad gave me now I’m 16 so these are nearly double my age and they still are the best pliers I’ve ever used

@dsesuk 5 лет назад

Cool to have a tool with a bit of history attached! I still have my tools from my comms trainee days back in 1991, but they're not VDE rated so sit in the home toolbox.

@finnsagg5264 5 лет назад

David Savery Electrical Services oh nice one I have Snap-on and knipex and ck pliers but for some reason I always go for the Kleins but I don’t know how good the new klein stuff is from cef do you have any experience with it

@dsesuk 5 лет назад

I've limited experience with their hand tools I'm afraid. I got through two sets of their wire strippers in short order which put me off, but I'm still on the Bahco VDE screwdrivers and CK/Knipex cutters/pliers I've been using since setting up on my own, and unless I lose them, I suspect they'll see me out!

@stevethomas5849 5 лет назад

I have 10 and 12 inch Sykes Pickavant water pump pliers along with Sykes Pickavant mole grips (Mole grips are a brand of locking pliers established in 1950 by Thomas Coughtrie, but is now used to describe any locking pliers just as hoovering is to vacuuming ) from 1988(god I miss those days) still in good working order, they also stay in my roller cabinet.

@reesyo71 5 лет назад

The Klein insulated pliers from CEF should be every bit as good as the old ones, the pliers, and snips are manufactured in the states using virgin steel ( not recycled ) in Kleins own foundries to ensure consistent quality.

@davidmanning5874 5 лет назад

HELLO DAVID DO YOU EVER THINK THAT ALL DOMESTIC INSTALLATIONS ARE GETTING JUST A LITTLE BIT SILLY? GETTING TO FAR AWAY FROM LIGHTS + A FEW SOCKETS THE FIRST HOUSE WE EVER MOVED INTO THAT HAD ELECTRICITY WE THOUGHT IT WAS GREAT NO MORE FLIPPING CANDLES OR OIL LAMPS

@dsesuk 5 лет назад

Oho, this is nothing. If you want silly, look at all the IoT stuff coming out. We've been on installations where every light switch and every socket is a mini computer in its own right, all in communication with a hub that talks to the homeowners frickin' iPhone! Impossible to properly IR test a circuit like that, and when the lights start misbehaving, you're into faultfinding on Bluetooth, iOS, known incompatibilities with Pokemon Go etc. etc. It's enough to turn you into an alcoholic!

@mickbitchum4664 5 лет назад

@@dsesuk oh tell me about it, what's wrong with getting your arse off the sofa and walking a few feet to switch a fucking light off?... Working on a six bed new build house at the minute with WiFi controlled lights, Programming them on a keyfob telling it what I want the light to do when somebody presses the bloody switch! The customer also keeps asking why the lights arent working from the ipad and I'm fed up of telling them it's because they haven't got Wi-Fi yet🙄.... I remember the days when 2 way switching was considered a luxury item😂

@muzikman2008 5 лет назад

@@mickbitchum4664 Intermediate Light switches are only for royalty :-)

@willford8475 5 лет назад

Shits and Giggles is all very well but when I tell my wife a joke it's all Giggles and Shits. I need to get her to the Vet! 😳

@dtec30 5 лет назад

curious what the device with the LCD display is up on the wall with 4 grey leads coming out of it david

@dsesuk 5 лет назад

For illustrative purposes, that's pretending to be a smart meter, but I get so much stick about the fact it is really a central heating controller that I have since been out and spent my hard earned beer money on an actual meter to put in its place! At present, the tails simply loop behind the device, but they'll properly pass through the real meter when I get around to installing it.

@dtec30 5 лет назад

@@dsesuk ah ok cool thanks for the info i should send you a pic one day of the main board here lol i think you guys would get a kick out of it

@wyndavies5044 5 лет назад

Hey David, are those tails going into that 2 channel programmer?

@dsesuk 5 лет назад

Goddammit! It's supposed to look like a meter! The tails are just looped through the back of the thing. I need to get hold of an actual meter to put there (I'm too stingy to buy a new one for £25 just for display purposes!) When I built that mock up, I had about ten subscribers and I figured nobody would ever be interested enough in anything I said to tune in and notice!

@TheChipmunk2008 5 лет назад

Having just bought 6 USB cords for 1.99 Canadian dollars on fleapit... I am not unfamiliar with conductor resistance. I think they used burned out heating element wire from John Ward failed cup-o-tea heaters. but they shaved it down 8 hrs connected to a genuine charger, 5% battery increase lol.

@dsesuk 5 лет назад

Oh dear! They sound like they're better insulators than conductors!

@tech4pros1 5 лет назад

Some recent phones do actually communicate with the chargers, the Qualcomm quick charge specs allow for selectable output voltages from the charger if the connected device communicates and supports it.

@serenetysteel7007 5 лет назад

I use this one for USB outlets works under load also www.uni-t.cz/en/p/usb-tester-uni-t-ut658 And totally agree with isolation for the transformer!

@HenryLoenwind 5 лет назад

Pretty useless without it showing what the charge port signals it can provide. Or did you ever see a phone with a "0.5/1.0/2.1A" switch? To be useful it needs to reads and display the signalling, show which standard (USB/Apple/Android/mixed) it is, and then test with that load. It should then test the overload behavior of the charger and it should warn if the charger represents itself as HID or storage device.

@mowcius 5 лет назад

Without the load capacity, it looks to have similar functionality to the Ruideng USB meter which is a good budget option (as recommende by Big Clive): www.banggood.com/RUIDENG-UM24UM24C-USB-2_0-Color-LCD-Display-Tester-Voltage-Current-Meter-p-1240574.html The built in load tester and rugged looking case does look to make this Kein one a bit more suited to an electrician's toolbox though.

@dsesuk 5 лет назад

I think I've seen them on Amazon too. The colour scheme gives me a headache, but as you say, apart from the load test, the basic monitoring functionality is there. I suppose you could knock up a PCB with switchable 10, 5 and 2.5 Ohm resistors and a USB plug and you've got yourself something that does much the same job!

@mowcius 5 лет назад

Thankfully you can adjust the colours to be less jarring, and USB loads (even adjustable) are very affordable from the usual places, but I might end up picking up one of these testers just for the fact it's nicely contained in the one unit.

@dsesuk 5 лет назад

Probably a no-brainer at half the price, but I feel sixty quid is a bit of an eyebrow-raiser.

@markpunt9638 2 года назад

How much? If that’s produced in China, it costs about 50p to make!

@muzikman2008 5 лет назад

Ah lovely electricians finger!..i get split thumbs from cutting...sore as shit! :-D I have a cheapo USB tester, like you used before the Klein, But i don't install USB sockets, for the reasons you mentioned, too much hassle, unreliable, not worth the call back.If they supply it, I will fit it, but only guarantee my work not their socket outlet. A guy is advertising fitting 2 for £15 pmsl, good luck to him if they all fail..hmmm.

@dsesuk 5 лет назад

That damn finger split just won't heal; I keep catching it on site!

@ashmanelectricalservices4318 5 лет назад

I personally wouldn't spend £60 on a device that's gonna tell me what I already know. If you've got 230v at the socket and the USB sockets aren't working, then it needs replacing. I'm not interested in the why, there are no serviceable parts on these things so the best you'll ever be able to do is replace it.

@dsesuk 5 лет назад

Sixty quid is a big ask, but I suppose from my point of view as an installer, I want to know that at the point of second fix where I'm signing the job off, the kit I've supplied is working as it should be and there are no duff outlets that require immediate replacement (possibly under a warranty call-out later). Similarly, if the client has provided me with some no-brand thing, I can prove at the point of installation whether its actually working as it should be so that I don't get blamed later when their iPhone bursts into flames (or something).

@ashmanelectricalservices4318 5 лет назад

@@dsesuk I think on this occasion, I'll pry the wallet open and spend the 5 quid on an Ikea USB snake light 😂😂😂

@tech4pros1 5 лет назад

Phones bursting into flames isn't too far fetched, as if the little 5v supply in the socket is badly designed, the ground of the usb or the 5v output may well be referenced to the mains! BigClive has done several videos on these lethal usb supplies, especially the 'gay dalek' camping lights with a usb port on the front that is referenced to the mains when the device is plugged in.

@markandrews8437 5 лет назад

I see some poor McDonalds employee has lost their hat 🤦‍♂️

@dsesuk 5 лет назад

It's my daughter's, but it's okay as I understand they'll deduct the cost of a replacement from her wages.

@ashmanelectricalservices4318 5 лет назад

@@dsesuk Everytime you wear that cap, someone ask "Why are you wearing a McDonald's cap?". I think you should do a video on it and put an end the repetitive questions.

@glennhart9410 3 года назад

That mc D hat needs a wash

@CoolerQ 5 лет назад

There are definitely other competitors out there. I have a super fancy one, B073R7YRM9 on Amazon, but there are also much cheaper kits that have similar features to the Klein you showed here.

@CaptainK007 5 лет назад

How much energy does the usb power supply use with nothing connected? How much energy worldwide do all the empty sockets use? We’re doooomed I tell yah doomed. 😎🍻🍻

@dsesuk 5 лет назад

It wasn't too long ago we were being advised to unplug our chargers when not in use as small differences all add up. Now that we all have them permanently fitted into our sockets and powered 24/7, it's equivalent to us each punching a dolphin on the mouth. Or something.

@CaptainK007 5 лет назад

Dolphins now, pfff see, all this false news I was told it was kittens 😂