Gochifix 3 in 1 scope meter review

Testing the GOCHIFIX Oscilloscope + Multimeter + Waveform generator 3in1
Gochifix 3in1 handheld Oscilloscope: amzn.to/3VN7klZ
Discount code (25%off): 25MathRS

[@nathanlucas6465]

Its a ballsy manufacturer who sends someone like Matthias a product to review! Does suggest a certain amount of confidence in their product

[@matthiasrandomstuff2221]

Ballsy, or not knowing what they are in for :)

[@nathanlucas6465]

@@matthiasrandomstuff2221 🤣

[@macedindu829]

@@matthiasrandomstuff2221 Woe to the poor fool who sends you a product without reviewing your channel beforehand.

[@matthiasrandomstuff2221]

Sorry, had to re-upload on account of an audio glitch. This one my fault -- spent so much time trying to get it to render that, when I copied all the clips to a new project to get it to render, somehow I missed a few audio clips.

[@John2009R]

Have you tried DaVinci Resolve? The free version probably has everything you need, and it is very reliable in my experience

[@SnowsLife]

let me guess, magix vegas?

[@slavaslava6733]

Hello, I have a question for you. Is it possible to move the compressor in a window air conditioner... about 2 meters from the window where the air conditioner itself is installed...?

[@SnowsLife]

@@slavaslava6733 Not without the tools to safely remove and refill the coolant in it, and the skills to solder new tubing to the system. There's only so much copper tubing in thoses systems , definitely not enough to stretch it out 2 meters.

[@BigEightiesNewWave]

He is finding all the GOTCHAS, so they can go back and FIX it 🤣

[@geoffreygriffiths1487]

Very interesting video, I am a electronics technician who has worked with a lot of high end test equipment over the years. You demonstrated over your two videos the basic problem that every one faces when it comes to electronics testing and diagnoses, you need more than one piece of test gear to do the job. At times you will want to see several different values at the same time and one meter will not be adequate to achieve the task. I am retired now, so my access to high end equipment is over, but I have two different scopes one for the shop (Telequipment D1011) and the other a pocket scope I use at the cabin (DSO NANO-v3).

[@imqqmi]

The test square wave on the Rigol is a good signal, it's there to adjust the probes for proper termination, so adjust it until it's quare. There's a small adjustment screw on the probe. Nice thing about a 'multimeter' scope is that it's battery powered and doesn't have issues with ground and the device under test. For oscilloscopes you'd often use a separation transformer. Handy for probing PSUs for example.

[@matthiasrandomstuff2221]

yes, someone pointed that out already. Scope probe was out of adjustment.

[@SIB1963]

Keep up with these videos. I realize they may not have wide appeal, but they have a lot of core appeal.

[@Globaltecbrasil]

Parabéns 🙌🏻🙌🏻

[@MCsCreations]

Awesome review, Matthias! Thanks! 😊 Stay safe there with your family! 🖖😊

[@richardperritt]

These all-in-one tools are, like most multipurpose tools, good for approximate use when you don't have the proper tool at hand. The old adage still applies: The right tool for the job They're also good to start with while you're saving for the right tool. Just bear in mind that accuracy isn't one of their strong suits. (& yes I own a Leatherman and proper hand and power tools. I also own an inexpensive scope/voltmeter/component tester while I save for a Siglent SDS1204X-E. I'd rather have a Keysight but I haven't won a lottery yet)

[@seanmurphy1863]

In the video where you were fixing the bench top power supply I was looking at the fancy voltmeter wondering where you got it 😍

[@don_lock]

I have a meter that is very similar (outline digits, scope mode, etc) and have found that if I exist scope mode by long-pressing the button, subsequent AC voltage readings are erroneous. Might be true of other functions, I haven't tried. But now I always exit scope mode by turning off the meter. Otherwise very pleased with it in general, love the outline digits, as you said you can see the waveform so very useful.

[@matthiasrandomstuff2221]

Just checked mine, doesn't exhibit this problem.

[@don_lock]

@@matthiasrandomstuff2221 That's good to know. Mine is about a year old so there are probably updates to the software since then. Too bad they don't provide a way to update! Maybe I'll open it up and investigate how updates could be done.

[@bradley3549]

Been looking for a replacement for my 20+ year old Vellman handheld scope and that really look pretty suitable for my 'good enough' eyeballing of waveforms. Thanks for sharing.

[@GoldSrc_]

I love these tools, they might not be the best of the best, but pretty much everyone should have one. Thanks for the review.

[@joejane9977]

thanks for teh review i will stick with the FNIRSI 1013D i really like mine glad you tested it rather then the others that just read from the script given

[@Name-oz8zr]

11:35 Did you compensate your Rigol probes? Probes should be adjusted so that the test signal is as square as possible.

[@matthiasrandomstuff2221]

oops, just checked, it was the probe. Which is to say, the scope meter is a bit off.

[@bradley3549]

Thinking about measuring the mV scale around 4:30 on your wound resistor. Since it looks like about half the winding is exposed, you'd think you could evaluate a range of sub-mV measurements by adjusting your position on the coil. 1/4 around the coil should be close to 0.75mV or 1.25mV depending on the direction. That would be interesting to see if the meter can pick up on that level of change.

[@mixpotato23]

Perfect for my use case. Check oscillator of motherboard, mosfet drive signal.

[@nixxonnor]

I think Matthis likes the accuracy of this meter, and, possibly more, the resolution in DMM mode

[@ahbushnell1]

Excellent video.

[@TheRainHarvester]

😮 14:06 probably the "trigger" is done in software on stored values. That's what i did on my diy oscilloscope,on my channel.

[@matthiasrandomstuff2221]

Yes, most likely, which is why the faster it goes, the less likely it is to trigger. Still useful for repeating waveforms, but useless for one-shot events.

[@ahbushnell1]

Also if you measure fast signals on with your scope probe be sure to use the 10X scale. That gives better bandwidth.

[@chvolow]

I’ve always liked the look of that HP meter when it shows up in your videos. It’s too bad they don’t make it anymore.

[@Lizlodude]

5:58 I LOVE that shutter, I've seen a couple of other meters with that feature from EEVBlog. Still not quite idiot proof, but goes a long way in not forgetting it's in the ohm port and blowing a fuse or shorting out a power source in amp mode.

[@TheRainHarvester]

😮i put a resetable ptc fuse in my old radio shack miconita multimeter. It reads low on current but saves me. You may like my diy oscilloscope video.

[@ElectroAtletico]

That HP971A is nice.

[@bickybickford]

That was a great deal, I bought one TY.

[@Dje4321]

I like this but using a tool you cant trust is a recipe for disaster. The fact that I can get the voltage wrong could be life threatening when making sure a circuit is dead

[@KishorKurian]

Hey, amazing videos. Can you analyse the airflow through Whirlybird ventilators? I would like to see a good analysis to see if its worth having it in houses. Also would like to power it with a small motor to always keep it running instead of only depending on the wind and hot air movement which causes the natural rotation.

[@pdxRetired]

I watched both, a little hard to adjust so the audio played simultaneously, but I did no see/hear any issues. Nice little scope-meter by the way, good choice for someone that does not have budget for an array of instruments.

[@matthiasrandomstuff2221]

audio was missing for about 10 seconds from the old one, you probably missed that.

[@mrkattm]

I don't recall you mentioning the price but I have the Owon 3 in 1 hand held, it is a little pricey, but it works well for me. You may want to give it a look.

[@tonypitsacota2513]

Thanks for the review... I was about to purchase this meter when I "accidently" bumped into your review on youtube.... Any cheap osc.'s that you can recommend? I'm tuning a car stereo multi-amp setup....

[@matthiasrandomstuff2221]

the usb scope I bought years ago is surprisingly functional, but awkward to use.

[@ahbushnell1]

Does it have an option for zeroing the ohmmeter for low resistance measurements?

[@MusicBent]

Interesting review! That’s a ton of features considering the price. Its seems to do them all adequately, but doesn’t excel at any of them. The slow refresh rate and inconsistent / or potentially in accurate readings are more of a concern for me. Quite powerful if you know its limitations, especially for the price. Not sure I would recommend it to a beginner over a fluke or equivalent though.

[@matthiasrandomstuff2221]

Key is to know its limitations.

[@ahbushnell1]

your scope probe has an adjustment to take out the overshoot. That's why they have the square wave signal out of the scope.

[@matthiasrandomstuff2221]

yes, turns out it was out of adjustment

[@ahbushnell1]

@@matthiasrandomstuff2221 Good Video

[@Gootch]

Hi Matthias, I guess your HP is correct at 1:41 it just doesn’t calculate the true RMS of the wave you showed on the scope. It just measures the peak to peak Voltage and divide it by the square root of 2 as it would be correct for a sine wave. Your digital scope is capable of calculating the true RMS. Nice video! Joachim

[@alskjflaksjdflakjdf]

When I click the link Amazon says it can't ship to Canada, but someone seems to be selling the same meter on AliExpress for $78. If that's the Amazon price that's a very affordable meter. It's also interesting to see how good the signal is with the multimeter probes, I would have expected it to be much worse.

[@techalyzer]

As a hobbyist without a fortune to spend on my hobby I always wondered how good such scopes are, the mobile ones in the $100-ish range. I don't need precision or extreme frequencies, just a simple way to see waveforms, to check for AC where DC should be, waveform, ripple etc.

[@BlockyYT1422]

The Power Supply with a Variac seems interesting. Is the internals exactly the same as the other power supply or is it a bit different?

[@matthiasrandomstuff2221]

rectifier and filter are the same.

[@johndevires5911]

Good review. 👍Those "hollow" fonts makes me dizzy. 😵‍💫

[@smug_cat1]

For the 50$ you pay damnn im impressed its far from good but it definitely enough as a kid 15 even 10 years ago I'd be super happy

[@mrezniable]

Software bug in voltmeter, LOL... 7106CPL chip and 7 segment LED matrix rules 😂. I miss great 90'is 😉. I still have respect to the Fluke, HP and Metex.

[@AndrewHelgeCox]

Your main channel doesn't have a channels tab alongside video, shorts, community, etc. which links to this random channel. FYI

[@timfahnestock1099]

Are there better scope meters you would reccommend, or is it better to just get a benchtop scope?

[@matthiasrandomstuff2221]

A benchtop scope will always be better. bigger screens, actual knobs, better probes. But this is the only handheld scope I have tried.

[@electronixTech]

I've used a Fluke ScopeMeter over 20 years ago at one of my work places and it was pretty nice but you're looking at big money for those. I have a couple of used 80s vintage Tektronix scopes and they still work well for me.

[@JimLambier]

@@electronixTech I remember having one of those ScopeMeters that was gifted to us at work by another facility. It seemed like a cool idea, but I remember it ate through batteries like crazy, had low bandwidth and had a really slow updating monochrome display. One employee kept borrowing it for home use and eventually I just let him keep it since it was never used at work.

[@PA3GUQ]

ScopeMeter is a trademark of Fluke. So there is only one brand of ScopeMeters. Others are not one.

[@jix177]

Agree that benchtop is always better. And the Rigol DS1054z is still great value for money for the hobbyist. For budget handheld scopes, the ZOYI ZT703S is an ok buy for the hobbyist. And it's a 2-channel scope but annoyingly it only ships with one probe.

[@slavaslava6733]

Hello, I have a question for you. Is it possible to move the compressor in a window air conditioner... about 2 meters from the window where the air conditioner itself is installed...?

[@ramosel]

I looked at that one and was just turned off by the numeric display... sorta immature concepts trying to be a professional tool. For the same money, the FNIRSI was a better choice for me. So far, I haven't seen the glitches you were encountering either. That and their USB tester is one of the best I've ever tested/used.

[@MordecaiV]

Thanks for sharing! I think I'll pick one up.

[@alskjflaksjdflakjdf]

Thanks for pointing this out. I'm going to watch some reviews and might pick one up.

[@gamingSlasher]

The digits are really hard to read.

[@TheBeerbelly007]

Just a little over my head :)

[@SauronsEye]

Early in the review shows bad figures being returned and suggested a software issue is the cause but could the issue be fixed by simply turning the 3 in 1 off and then back on and then taking readings? Similar to how a computer hangs and you fix it by turning the computer off then back on again? Remember, that's a $90 US 3 in 1 versus a scope probably worth the cost of a small car. A bit like comparing the cuteness of a Wildebeest to a Koala...no contest.

[@matthiasrandomstuff2221]

except that it’s wrong bu default and only sometimes correct

[@fredshead3956]

Good meters, pity you cant buy them in England...or from US to England

[@harkbelial]

That's the good stuff, sometimes it works and sometimes it doesn't😂😂😂

[@Ermuggo]

I once caught a ghost on film with my DRC-SR35 I think it might of been more scientific than this video

[@nanoIam]

That's me on that camera, I gave it to you.

[@charlesurrea1451]

I imagine the sample rate is higher on the other meter

[@matthiasrandomstuff2221]

yes, 1 gigasample.

[@ron827]

It appears Matthias is wasting his talents by making sawdust.

[@1pcfred]

The cheez whiz handheld scopes aren't quite there yet. But they're getting close. I think the primary problem is that China can't really fab top of the line chips. Once they get better nodes they'll dump on the market like they always do though.

[@matthiasrandomstuff2221]

A scope like that doesn't require top of the line chips. and my bigger scope is also from china.

[@1pcfred]

@@matthiasrandomstuff2221 perhaps that isn't the reason. But China's ability to diffuse their own ICs is extremely limited for global strategic reasons. In short we control the equipment and we won't let them have it. If they could just order any gear they want the world would be a very different place. We're not keen on that.

[@ahbushnell1]

Electrolytic capacitors have sloppy specifications.

[@godfreypoon5148]

This is why I am a Fluke snob. HP, yeah, I'm certain they would be great, but this is a Fluke-only household. Any no-name crap finds the bin rather fast.

[@matthiasrandomstuff2221]

possibly that HP IS a fluke on the inside.

[@electronixTech]

I wonder if the Chinese use a random name generator to name their products.😁

[@1pcfred]

They name things the traditional way. They throw pots and pans down a flight of stairs and phonetically record the sounds. Ping, pong, dong, bang!

[@electronixTech]

@@1pcfred Good idea! The geek in me could use this method to record random noise and create a random number generator for encryption purposes.

[@1pcfred]

@@electronixTech the Internet runs on lava lamps so stranger things are happening.

[@MordecaiV]

It aids in avoiding trademark issues with being able to sell on Amazon. Google slashgear reason-amazon-sellers-have-strange-brand-names

[@johnhawkinson]

"There's no substitute for a big scope like that." Oh, the world in which that Rigol scope is "big." Some of us still have rather older scopes that are, shall we say, … rather larger.

[@matthiasrandomstuff2221]

ok, but some big old 1970s modular tektronics scope on a cart has bigger knobs, but not really more functionality

[@KoRL12]

i have no idea what any of this means, but im still find myself watching

[@BigEightiesNewWave]

3 years from a standard, cheaper, 9-Volt

[@ilanmagen]

$89 NOP

[@LawpickingLocksmith]

Ze Germans say: Wer misst, misst Mist!

[@dorhocyn3]

That HP test meter looks like a fluke

[@ShopTherapy623]

Watching your videos makes me feel dumb