I purchased this same exact meter at Harbor Freight under CEN-TECH P98674 many many years ago and it served me well! What I like also about this meter is that the batteries last for ever! I paid only $49.99 but today it is $79.99 - everything is going up and up in these days! I like the added reminder where to plug in the leads so one can't hurt the meter. Nice jon Eddy!
That's great, I'm writing a system requirements document which includes requirements for lighting and sound levels in working areas, so this will be great for verification
That sounds so great! I have been in so many labs and manufacturing floors with such poor lighting...I think the people just get used to it. Also, the noise level in some environments is just to high - even if it is temporary. Good for you!! I'd like to know what levels you find necessary for workers.
i dropped one of these from my bike and didnt realise before i got home, it was lying on road for 20mins and few cars or trucks drove over it. the probes were torn and destroyed. the display had deep scratches and scratches all around. it looked like it got wedged on wheel and dragged on the asphalt for a bit. surprisingly it still worked for few days and then suddenly gave up and started throwing garbage values. it slowly died a painful death.
Harrowing tale of misery and despair I can almost hear it's sickening cries for help as it desperately held onto life. What an awful story I hope if needed you find the right therapist for your recovery from the trauma.
when i was a kid (2 and a half years ago) i built an arduino temp and humidity gizmo that had multimeter functionality added to it and paid a few people who had more time to "review" it on google's video website
I bought this multimeter for my son and I specifically bought it because the correct ports for the Leeds light up. . He is 13 years old and into robotics. It's a good starter one fore sure. Anyway, I received it today and am wondering why the DC reading does not stabilize on zero or anywhere near zero when it's not connected to anything? It does work fine when you apply current. At first I thought it was faulty. Thank you for doing such a thorough video!
Thanks for asking. Great meter - especially for the new person to the field of instrumentation;) OK, that is normal. The meter has high impedance - say 10 Meg Ohms or higher, so if not connected to anything - it will pick up any floating voltage - like an antenna. But if you short the leads together - then it should zero out. So this is normal;)
Great review. Will you also review the VC870 in the future? I have seen you upload and talked about it before on the SHORTS. Its quite impressive with 40000count and dual display.
Thx for the review. Seems to be a nice DM+M. Any idea of the frequency range for the mic/sound measurement? Id guess it uses a bog standsrd cellphone mic and these can be either OK or be really bad, in both range and accuracy. Time for a comparison test !? 😊
Thanks - great question! I briefly showed the spec and the table shows 100Hz to 8kHz in decibel range of 40dB to 100dB. I have a new sound level meter and I'll compare them both to my Bruel & Kjaer meter that I did a repair to the batter compartment: ua-cam.com/video/niwy1LBHHOA/v-deo.html
I reviewed that meter a couple of years ago, my conclusion was a good beginner meter, but with a couple of caveat: 1) dB is basically useless 2) Low current uses a PTC fuse, it means high burden voltage when close to maximum mA current (But is very nice in a beginner meter). 3) Light do not specify filtering, i.e. can be used to compare similar light sources, but nothing else. I also have some doubt about the CAT rating. I.e. if you want to measure sound, get a real sound meter, do not use this meter. For light is can be used, but is fairly limited, i.e. you cannot compare a led and a incandescent source (A meter that can do that cost money).
Thanks for your feedback! 1) I did a basic measurement with the dB and it seemed OK. I just want to use it for comparative measurements, so it doesn't have to be super precise. But I'll compare it to my high-end dB meter. 2) I'll do some measurements to see how accurate it is. Burden voltage is always something to consider. I usually measure that - so thanks for reminding me. I'll make that a point. 3) I assumed it was for daylight kelvins but I'll look into it. Again, I took a basic measurement from the flashlight and it came very close to someone else who measured the flashlight and left a review. I have several high quality lumen meters but I picked up this meter for those who want all these things (albeit not super accurate) in a single meter at a fair price. CAT ratings for CAT III are not that difficult, so I'd be surprised if this company would put their fate on cheating that CE rating. I know a lot of people make light of the CE rating - but if you want to stay in business - you better be able to show your test data when asked. So this meter is not meant to be a precise instrument. I think anyone serious about LUX or dB for sound pressure will look closer at those specs and realize what they are. I showed these specs and they are pretty basic. But, for what I want to measure fan noise as a coparitive measurement and Lux to see the ball park lumens and as a comparitvie measurement. I think this meter is great. Also it is only 4k count, so again it does everything OK but not high precision, but then again most meters are 6k count and that is not a huge jump in precision.
1) I measured with a couple of different frequencies and it did not match a real dB meter. I.e. it did not have the correct filtering. 2) It is, but for a beginner meter it is good enough (Use 10A range to get around burden voltage) and the PTC fuse means no blown fuses. 3) It may be correct for daylight spectrum, but neither LED's or fluorescent light is anywhere near that. A real LUX meter has filtering that makes it show correct for any light source. CAT ratings usually requires some input protection to handle overload on ohms/etc. Of course some people believe it is acceptable the meter shows wrong values or dies after a overload on these ranges. I do not believe in a CAT III rating before the meter has MOV and PTC in the input protection, a small MOV in the ohm circuit is not enough (Many of these meter can handle mains voltage in ohms range (Mains is 230VAC around here)). As I said: A great beginner meter (and fairly precise on electrical values), but dB and LUX is not its strong side. If you really want to measure LUX get a Gossen meter, they are fairly precise (But expensive).
Thanks for the review Eddie. I think it’s a great meter for beginners especially when you consider the price. It’s obviously not meant for pros or tradesmen but I think it’s adequate for most beginners.
My tinnitus is already thanking you! Years ago I had an old Mastech when I was just a kid beginning electronics, the problem I had when I got older and more knowledgeable was the dangerous design. Maybe they have gotten a bit better. But I've always had a problem with Cat I-II-III or IV, because the people who are most at risk are casual users who are probably ignorant of Cat ratings.
The close ups from taking it apart were way too much zoomed in, and you move it around way too much. That gives really bad focus and it almost makes you nauseous to look at. Try to get more more stable and more in focus shots. But it's about time you did this review; the box of that multimeter has been on your desk for at least 3 years! It can be seen in this video (and most later ones): ua-cam.com/video/BGkoK9lSi1s/v-deo.html (from 0:30 onwards) 😂🤣
LOL - you are right - it is about time;) Thanks for the feedback! I actually have a nice macro camera I bought to show these things - I just need to set it up;) Probably bought it a year ago...
Thanks for covering this. It will be my first multimeter for my shop. I've lived too long without one.
That's great! Thanks for your feedback!
I purchased this same exact meter at Harbor Freight under CEN-TECH P98674 many many years ago and it served me well! What I like also about this meter is that the batteries last for ever! I paid only $49.99 but today it is $79.99 - everything is going up and up in these days! I like the added reminder where to plug in the leads so one can't hurt the meter. Nice jon Eddy!
Thanks Tony! I appreciate you!
That's great, I'm writing a system requirements document which includes requirements for lighting and sound levels in working areas, so this will be great for verification
That sounds so great! I have been in so many labs and manufacturing floors with such poor lighting...I think the people just get used to it. Also, the noise level in some environments is just to high - even if it is temporary. Good for you!! I'd like to know what levels you find necessary for workers.
HI Eddie, awesome video, thank you. 😃👍
Thanks so much!
Finally, giving the "multi" in the multimeter a meaning.
LOL you are right!
i dropped one of these from my bike and didnt realise before i got home, it was lying on road for 20mins and few cars or trucks drove over it. the probes were torn and destroyed. the display had deep scratches and scratches all around. it looked like it got wedged on wheel and dragged on the asphalt for a bit.
surprisingly it still worked for few days and then suddenly gave up and started throwing garbage values. it slowly died a painful death.
Wow - what a story! I'm sorry. Did you replace it?
Harrowing tale of misery and despair I can almost hear it's sickening cries for help as it desperately held onto life. What an awful story I hope if needed you find the right therapist for your recovery from the trauma.
Большое спасибо за обзор 👍 😊Thank you very much)) good luck to you)
Thanks so much!
when i was a kid (2 and a half years ago) i built an arduino temp and humidity gizmo that had multimeter functionality added to it and paid a few people who had more time to "review" it on google's video website
Sounds awesome!
Thanks for the review Eddie. We have new products coming soon.
Wow I’d love to show them here first:)
I bought this multimeter for my son and I specifically bought it because the correct ports for the Leeds light up. . He is 13 years old and into robotics. It's a good starter one fore sure. Anyway, I received it today and am wondering why the DC reading does not stabilize on zero or anywhere near zero when it's not connected to anything? It does work fine when you apply current. At first I thought it was faulty. Thank you for doing such a thorough video!
Thanks for asking. Great meter - especially for the new person to the field of instrumentation;) OK, that is normal. The meter has high impedance - say 10 Meg Ohms or higher, so if not connected to anything - it will pick up any floating voltage - like an antenna. But if you short the leads together - then it should zero out. So this is normal;)
Great review. Will you also review the VC870 in the future? I have seen you upload and talked about it before on the SHORTS. Its quite impressive with 40000count and dual display.
It is impressive - I really like the VC870. I'll review it very soon!
Thx for the review. Seems to be a nice DM+M. Any idea of the frequency range for the mic/sound measurement? Id guess it uses a bog standsrd cellphone mic and these can be either OK or be really bad, in both range and accuracy.
Time for a comparison test !? 😊
Thanks - great question! I briefly showed the spec and the table shows 100Hz to 8kHz in decibel range of 40dB to 100dB.
I have a new sound level meter and I'll compare them both to my Bruel & Kjaer meter that I did a repair to the batter compartment: ua-cam.com/video/niwy1LBHHOA/v-deo.html
I reviewed that meter a couple of years ago, my conclusion was a good beginner meter, but with a couple of caveat:
1) dB is basically useless
2) Low current uses a PTC fuse, it means high burden voltage when close to maximum mA current (But is very nice in a beginner meter).
3) Light do not specify filtering, i.e. can be used to compare similar light sources, but nothing else.
I also have some doubt about the CAT rating.
I.e. if you want to measure sound, get a real sound meter, do not use this meter.
For light is can be used, but is fairly limited, i.e. you cannot compare a led and a incandescent source (A meter that can do that cost money).
Thanks for your feedback!
1) I did a basic measurement with the dB and it seemed OK. I just want to use it for comparative measurements, so it doesn't have to be super precise. But I'll compare it to my high-end dB meter.
2) I'll do some measurements to see how accurate it is. Burden voltage is always something to consider. I usually measure that - so thanks for reminding me. I'll make that a point.
3) I assumed it was for daylight kelvins but I'll look into it. Again, I took a basic measurement from the flashlight and it came very close to someone else who measured the flashlight and left a review. I have several high quality lumen meters but I picked up this meter for those who want all these things (albeit not super accurate) in a single meter at a fair price.
CAT ratings for CAT III are not that difficult, so I'd be surprised if this company would put their fate on cheating that CE rating. I know a lot of people make light of the CE rating - but if you want to stay in business - you better be able to show your test data when asked.
So this meter is not meant to be a precise instrument. I think anyone serious about LUX or dB for sound pressure will look closer at those specs and realize what they are. I showed these specs and they are pretty basic. But, for what I want to measure fan noise as a coparitive measurement and Lux to see the ball park lumens and as a comparitvie measurement. I think this meter is great. Also it is only 4k count, so again it does everything OK but not high precision, but then again most meters are 6k count and that is not a huge jump in precision.
1) I measured with a couple of different frequencies and it did not match a real dB meter. I.e. it did not have the correct filtering.
2) It is, but for a beginner meter it is good enough (Use 10A range to get around burden voltage) and the PTC fuse means no blown fuses.
3) It may be correct for daylight spectrum, but neither LED's or fluorescent light is anywhere near that. A real LUX meter has filtering that makes it show correct for any light source.
CAT ratings usually requires some input protection to handle overload on ohms/etc. Of course some people believe it is acceptable the meter shows wrong values or dies after a overload on these ranges. I do not believe in a CAT III rating before the meter has MOV and PTC in the input protection, a small MOV in the ohm circuit is not enough (Many of these meter can handle mains voltage in ohms range (Mains is 230VAC around here)).
As I said: A great beginner meter (and fairly precise on electrical values), but dB and LUX is not its strong side. If you really want to measure LUX get a Gossen meter, they are fairly precise (But expensive).
Nice multimeter
Thanks!
Good review. I like that this meter offers a different feature set from ncv, which is way too common.
Great point!
Great stuff !....cheers.
Thank you!
Thanks for the review Eddie. I think it’s a great meter for beginners especially when you consider the price. It’s obviously not meant for pros or tradesmen but I think it’s adequate for most beginners.
Yes you are right on every point;)
Excelente video, muy bien explicado.
Thanks so much! I appreciate you!
Ï bet the electronics inside are the exact same as the Velleman DVM601 and PeakTech 3690. Same functions and same display, just diferent cases.
Thanks for your feedback! I'd love to look at them to see;) Great price for all the features. BTW I just got a Velleman to review;)
Jack of all trades, master/mastech of none.
Yes - that would be true;)
My tinnitus is already thanking you!
Years ago I had an old Mastech when I was just a kid beginning electronics, the problem I had when I got older and more knowledgeable was the dangerous design. Maybe they have gotten a bit better. But I've always had a problem with Cat I-II-III or IV, because the people who are most at risk are casual users who are probably ignorant of Cat ratings.
Thanks - but I don't see your comment;)
Still confusing but useful
Thanks! What is confusing? Maybe I can help...
@@KissAnalog how to turn it on and what are some risks (aka dos and donts)
OK - thank you!
The close ups from taking it apart were way too much zoomed in, and you move it around way too much. That gives really bad focus and it almost makes you nauseous to look at.
Try to get more more stable and more in focus shots.
But it's about time you did this review; the box of that multimeter has been on your desk for at least 3 years!
It can be seen in this video (and most later ones):
ua-cam.com/video/BGkoK9lSi1s/v-deo.html
(from 0:30 onwards)
😂🤣
LOL - you are right - it is about time;)
Thanks for the feedback! I actually have a nice macro camera I bought to show these things - I just need to set it up;) Probably bought it a year ago...
Имею такой же мультиметр цифровой Mastech,доволен им!Мне для работы по ремонту электроники!
Thanks! I like this meter!
Have a great weekend, kiss Analog
👍
KNOWLEDGEABLE Kiss Anulog
From Nick Ayivor from London England UK 🇬🇧 ⏰️ 21:32pm
Thanks Nick!