EEVBlog 121GW Review
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- Опубликовано: 19 авг 2023
- This is a review of the EEVBlog 121GW multimeter for use in hobby electronics projects primarily related to amateur radio.
A pdf document of this review: github.com/TomWilkinson/Multi...
This review was produced to help you decide if the EEVBlog 121GW multimeter will fit your purpose and budget. This is part of a series of multimeters reviews.
A good multimeter for hobby electronic projects should be able to measure millivolts, volts, microamps, milliamps, amps, ohms, nanofarads and microfarads.
If you want to measure picofarads, nanohenry, microhenry or reactance you will need a LCR meters. I cover the two LCR meters I own in another review.
I am not a professional, I am a hobbyist. This review is not sponsored; I bought this multimeter with my own money. I only used and tested this multimeter in CAT I and CAT II environments. I do not have a way to review or test the safety of this meter. I leave the CAT III and CAT IV environments to trained and licensed professionals. It may seem like I am a Fluke fan boy, but I recognize their flaws along with their advantages. There may be unintended mistakes and/or errors in this review. 
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Thanks, very good review.
Thanks for watching!
Thank you for taking the time to do these reviews. Its nice to see some other brands being put through the paces. I look forward to seeing more of your videos.
73
W3MMW
Thanks for watching!
Really enjoyed your review! How did you build those reference standards? Are they from kits you can order somewhere or did you just create them yourself?
I created them. The current reference board idea came from The Art of Electronics 3rd Edition by Paul Horowitz and Winfield Hill, Page 620. The other board were inspired by the DMMCheck, I just wanted more values then is on the DMMCheck.
thank you so much! Look forward to seeing more of your vids!@@N8FDY
Nice...cheers.
Another excellent video review. Thanks a lot. But...what about the low burden feature? Maybe you forgot it...
Thanks for you comment.
The burden voltage on the 121GW is not much different than the other meters I have tested. For the uA range it is 100 μV/μA and the Bryman BM525s beats it at 80 μV/μA for the mA range it is 2 mV/mA and the Bryman BM235 beats it at 1.9 mV/mA and for the A range is 0.03 V/A and again the Bryman BN525s beats it at 0.02 V/A. The thing I did forget was how to show the burden voltage on the secondary display.
@@N8FDYthanks a lot for your answer, Tom. Excellent work!
Test the k sensor by ice in water to get 0 degree C. For testing ex calibration Technician.
These meters are so old, I can't believe they have not been updated.
Hello!
And what kind of wires do you use?
The ones with "bananas" on both ends?
For testing I use these: www.amazon.com/dp/B09C8F89NV?ref=ppx_yo2ov_dt_b_product_details&th=1; When I using the meters I use ProbeMaster 8043S- Rt Angle Safety Banana Plug or Fluke TL175 Twistguard Test Leads, 2 mm Diameter Probe Tips.
@@N8FDY Thank you!
Wait, the 121GW doesn't come with gold plated probes? I always thought that it came with the excellent gold plated Brymen probes?
I didn't expect that from Dave, he even made a whole video about the importance of gold plated probes for electronics use and that it should be a factor in choosing a multimeter!
Having to buy an extra set goldplated probes is just additional costs (probemaster probes are $30 here....) and shipping it with nickel probes is just adding to the e-waste mountain, as if it isn't high enough already.
The easiest way to reduce impact on the enviroment is to stop producing products we don't need...that takes no extra efford, no extra money, no extra time. Just some thinking.
To put it in Dave's language: FAIL! That's terrible Muriel! 😆😅
The setteling time it takes in some settings that I see would also drive me crazy.
It has some interesting features but it's too bad about it's flaws.
That some of it's software isn't compatible with the newest OS versions already while it's still on the market is a sign of bad support and will for sure cause bigger problems in the future. A quality multimeter should be a product that you can use for decades, not for a few years.
If you watch the 5 (or 6) episode review of this meter by Joe Smith you know you don’t have to regret not wanting this meter.
@@ssalient Yes I watch his channel. Joe's tests and reviews are on another level. He had not much good to say about this meter. I think one of his biggest problems with this meter was safety where the meter couldn't resolve the DC component in an AC+DC signal where the meter displayed only a few volts where in reality the DC volts was almost 300V (so not even an overrange signal, actual 3 or 4 volts or something). The other meters he tested in this class had no problems with this, not even the cheap Brymen BM235. Not very good advertising for Dave Jones.
But the list with faults, inconsistencies and weak points he found was really long.
Thumbs up for great accuracy and some nice features that most meters do bad, BUT, ...shame on Dave Jones for 1) not better leads, and not way better LCD for such a high priced meter!
@N8FDY You can get better visibility, if You set LCD-4 to LCD-7.
Thanks for the suggestion.