$3 multimeter - high voltage & overcurrent test (smoke and explosion) 

Hunderd, i love your accent

My university had the students buy these meters (for $10) after they got ride of the Agilent meters in our lab, by the second lab session 30% of the students meters were broken. A few of us with the assistance of a frustrated lab instructor managed to get the department to buy the lab new Keysight meters and the school bookstore had to buy back all the shitty broken meters. They never really admitted fault, but at least they fixed the problem.

I saw a HVAC guy using one of these measuring between 480v phases once! He told me he looses too many meters to get proper ones! They are used out in the field way too often!

Why a using fuse, if the tracks can be used as a fuse 😂

Oh wow. That's EXACTLY the multimeter I have been using for 7 years! Seriously! Just for light duty though. Already replaced the probes with good ones after the old one broke at the tip. EDIT: I just opened it and the PCB layout is a little different and bigger. For the one seen in the video, the manufacturer decided to cut even more corners. Still no fuuuuse. That's niiiice.

Bloody hell LOL

"BLADI HEEEEL" 6:31 I love how it just silently exploded XD

Well, they could reduce risk of leads melting by writing on it "10A for maximum 15s then wait 5 minutes" or something like that. Some Uni-T do this, in order to prevent overheating the current shunt inside.

I have several of these "free" meters from Harbor Freight. The probes are so bad that I don't even bother picking them up in the store any more. Thanks for blowing one up. The arc going through your power strip was concerning. Did you look inside it after the event?

My old DT-830B (from the last decade of the previous century) survived the "connect to the mains in ammeter mode" test. However, I used it in 10A mode (with the red probe connected to the 10A connector). It melted the front of the probes, but it still worked after this. It had 200mA fuses and I changed them alot.

6:31Chinese Jumpscare.

I really like your tests of cheap tools!

When World is Ending @DiodeGoneWide : Thats Nice NICE VIDEO KEEP IT UP

I've had one of these for 6 years and its still okay. gets the job done pretty well. it was interesting to see it under pressure though. thank you for your videos specially ones which have some circuit analysis :)

really love your comedic way of reviewing these dangerous products marketed as "safe". learned and laughed along the way. cheers.

I paid like $12 for my first multimeter, and it works fine, but I accidentally shorted the mains through it, and I found out that it does have a fuse, sort of, i.e, the trace on the board, which completely blew off. I fixed it by just soldering a thin wire (so that it can still be a fuse I guess) across where the trace went, so it still works fine.

Danyk is a sweetheart in explaining and analyzing stuff ❤️

I enjoy your videos. Keep teaching us ! Regards from Spain.

I have this same multimeter, HAHAHA **explodes**

Again nice to hear your English. BUT never hold the probes with two hands when measuring the mains voltage. If the probe or wire insulation leak, you can get electrocuted. We professionals ( and amateurs, I hope) keep one hand in pocket or behind the back when measuring mains voltages or high voltages.

I am just wondering how long had you been torturing the cables with 10A? Just out of curriosity some, even „goog“ brands give you max 10s on this much Amps. So I am wondering this multimeter didn’t get out so badly at all, if you know its limitations and I am positively surprised.

I have one of those, but it looks like a different version inside. If you just use them for low voltage, for 3€ they are extremely good. Mine took quite a lot of abuse. The 20/200 mA range is no longer working after i shorted a 18650 with it. Still useful to monitor voltages, continuity, check shitty resistors values or even for the uA ranges sometimes. If you use it properly it is decent.

I like your smoke tests!

I also accidentally put that cheap meter when i buy it first time into main 230v while i set it to 10 amps... But the cheap cable works as a fuse and saved my multimeter and i still using it for about 3 years and it is still working fine.....

120% more of tensione but I was really scared by the tiny insulation of the wire i really dont want to hold in my hands the probes when measuring more than 400 volts!

I have several of these meters. I always get one when Harbor Freight has a free coupon. They are great to leave in the car, boat or camper. You never know when you need some quick troubleshooting. They work well enough for basic stuff.

I have the same model, for something so cheap it does the job. I use it only to test continuity and DC voltage. The probs doesn't always give accurate readings, so measure twice and press hard on the surface.

Thank you. I needed a more, shall we say, concrete explanation of why cheap and high voltage don't mix.

Good meter. Cheap price, great value for money. Solid build, with pretty design. Lightweight, flexible colored cables. Lifelong warranty. ;-)

LMAO!!! God!, I just love your videos, so funny and sarcastic, and that accent just does it for me, in a nice way, lol. :) Thx for this :D

I had this exact multimeter. It was given by my teacher, and it wasnt workig. After some invetigation, i saw that the board on it was melted. So i destroyed it.

I have one but only use to 14.4v dc maximum, cool to see this about it.

6:28 3, 2, 1, Bloody Hell!

Thx for another class! =)

I got the same multimeter and i tell you its quite good if you know what you re doing. Sure the test leads are garbage. And you have to remember there is no fuse inside. The accuracy is not super great but its quite stable device and works.

your accent gives me a smile hehe. love the videos man i learn a lot watching your contents.

I just love the way you say "Bloody Hell".

I'm using the exact same multimeter. Mostly use to check the voltage of my rechargeable NIMH AA battery since it the charger dont have any indication whether its full or not. Usually when it is 1.4V i consider the battery is full.

I like your videos! 😁👍

I love the 'smoke tests' while on cardboard with a whatever that is background (foam, cloth?)...you live on the edge dude! lol

I have a relatively cheap but sturdy multimeter. Like most, it has a port for 10A current, which basically creates a short circuit if one accidentally connects it to anything in parallel. It has a 10A fuse between the 10A port and the common port, but that was not sufficient to prevent a short circuit when I forgot to put the probe back into the voltage port before measuring mains voltage. Thankfully I was measuring the mains voltage through a power strip that had what I think was a 5A fuse in it. When I took out the blown fuse, I found that it had melted from one end, and the interior was somehow covered in a thin, mirror-like layer of metal. My guess is that the end cap melted and air rushing in (maybe there was a vacuum in the fuse to prevent arcing) splattered the metal all over the glass. Anyway, the fuse was absolutely pulverised, and I had no way of knowing what its rating was. Another person in the comments mentioned that their meter's probe melted before the internal 10A fuse blew. Maybe it would be a good idea (If one does not plan to measure high current) to replace a multimeter's 10A internal fuse with a lower rated one, so that it blows before anything important explodes.

Unique accent, i love youre videos

For all tests the multimeter passed perfectly, except the purposely abusive one. This multimeter is perfect for one who is using it for low voltage or even checking mains voltage sometimes. When getting nearby higher voltages you need to be aware of the risk. If you are just someone who cannot take care of what you are doing, just do not use a multimeter at all, no matter what brand and quality.

Who does not have a 830B dmm. They are everywhere. I think there was a store in the US that gave them away in purchases combined with some of their products. They are not actually bad as dmm's. But indeed their protection is very bad. The leads literally melt if they are subjected to 10A ... :) nice experiment :) And I was actually surprised to see it hold the 1200V DC test as well as the AC test ... So they are actually good dmm's ... but simply their protection is truly bad .

that great presentation about ampere

Čokoláda z výprodeje opět v akci :)

I love this guy and I stop buying cheap multimeters of course, thanks men :-)

I actually used this multimeter for long time, but it broke and started showing trash on lcd. Only thing I had to replace are probes because they fell apart.

I also have one. But the model is 830D. The black probe wire has broken after a few months of use. And the selector becomes loose after one of the small ball (I don't know how to call it but it is placed on the spring of the selector) suddenly comes out. Plus, the resistor measurement isn't working normally anymore.

6:31 it popped like a popcorn 😂😂😂

Nice video 😀😀

LOL! Entertaining. How come in my Physics class though we had to use an Ammeter and Voltmeter separately and the multimeter we used for measuring resistors only.

Quite entertaining to watch a multimeter explode. I didn't know that can happen if you forget what range you have set.

Cool video!!! thanks!!! I would hold the voltage for a minute to really see if the device can take it....maybe I will try it. :)

Needed to measrure 230v ac some days ago, shut everthing down, plugged multimeter and and got power back on from safe distance XD luckily, no detonation ;)

I think diode gone wild love smoke and explosion

I just got the same model as yours, no wonder it seems so familiar.

I'm surprised it held up to that voltage so well.

I've got some cheap multimeter I got from ebay for like 8 bucks, it looks like a fake fluke meter and it's actually worked really well for me except it came with similar leads that broke off very quickly, so I bought some new leads for it and now it's perfect. I would never stick it into high voltage though, but I'm not experienced enough to mess with that anyway so it's fine for me

Diode is really gone wild🔥😂👍👌

Cool multimeter from the action

I love your Czech accent and I love your channel

I have The same Multimeter ! ( Bought it in 2011 still no acident)

Next time if you get one more multimeter like this, please do the Microwave Transformer test too !

Love your videos, can you say "bloody hell" more I love the way you say it. Cheap multimeters are ok especially with decent probes but only for low voltage. Its much easier to have a few lying around instead of using expensive meters.

Thanks, I have those multimeter. You teaches me how to be careful with that multimeter :)

I suggest it wasn't so much "arcing" between the two conductors at 07:39, but it is more likely there was a solder "blob" or "tailing" that decreased the gap between those two conductors and that is what caused the damage in that section of the board. Those two conductors look too far apart to arc at normal mains voltage levels.

I'd say, "that's nice~". i think that sums it up well.

It's explodeeeeeeeeeeeeed !! Nice video man, I like you !

i have 3 of these meters since last 20 years ........... still working fine ...... :)

Fantastic

Good test

Good idea to put a diode in series with the probes. Expensive meters have them.

Surprised the bloody thing handled 10A like a champ, with only the probes getting fkd! :))) Btw, great accent! Keep up good work!

Smoke and explosion? Instant click

3:25 Can you see the smokeeeeee? - That's niiiiiiceeee!

hahaha you really enjoyed me - great vid, thumbs UP

That guy is the best. never care about accent if the content is pure!

Epic pop

You can use front cover for the older type that you have.

Its actually very impressive how it handled everything and also being super accurate in reading. 10 amps shouldn't be measured for more than few seconds in any multimeter. Because 10 amps powers huge industrial machines.

I like the way there was more fire in the power-board than the multimeter XD

Taký merák mám aj ja akurát že v "bezpečnej" verzii od UNI-T (je tam aj poistka, aj varistory, aj celkovo lepšia vnútorná izolácia a prevedenie), káble sú také isté ktoré som kvôli vytrhnutiu z hrotov kupoval už asi 3x (jedna sada stojí v našom elektre 1€) a pri poslednej kúpe som na vrch nalial Chemoprén na obuv a teraz sa to už ani nepohne. Na tom mojom je dokonca aj napísané pri zdierkach upozornenie "10A max. 15 sec, each 15 min" takže to majú ošetrené aspoň takto, ale žiadny multimeter nie je blbuvzdorný, chcel by som vidieť nejaké drahšie keby si ich pripojil natvrdo do skratu v zásuvke...

I've got same model for same price and it has fuse, I think it varies piece by piece.

At $3 you got good value. Some spares and a jump scare video, winning!

Which is niiiccee. Love it

i love your videos.your are genius .love your cat

Rip multimeter. 👻⚰️⚡⚡⚡ Good (and scary) vidéo. 👍👍👍

Loved the accent more than the explosion : )))

Bloody Hell! Love the way the way he pronounces it. But also love hi videos. And his cat.

I actually got one, I know cable are shitty, so just get a better cable. I added a fuse holder + a fuse in it. Some of us are just hobbist and need a multimeter to handle 12v/ 5v, and it does the job.

These are the meters that are given out for free by Harbor Freight. They're just red and rebranded as Cen-Tech.

Tank u Sir your great man I love your vedio

He shorted his mains to test the multimeter. I love it.

I remember I accidentally sticked my multimeter in mains while having probes in 10A range. Well I made some spot weld on probe the main 25A breaker tripped but multimeter is okay.

It is just for short time measurement. Wonder If you use Fluke, put it on max amp for hours to the cables will melt or not

Hello. You are can make a review of low price multimedia hard disk reader?

I like the fact that you use the word "dodgy"; did you spend some time in the UK?

Nice!!!

That feel that mine bought in Czech Republic survived mains through unfused 10A range 😂, although the current sensing is gone, which is fine to me be because the rest of it is fine 😂