Hi Roger, i know this is a old video, but it became very handy today. My Aneng AN8009 was acting weird (cutting off, not stabilizing in resistance mode etc...) when i barely pressed on the rotating knob. So i took my meter apart and cleaned the 6 cupper "bridge" contacts from the knob and removed the excessive grease, but 3 contacts from the rotating knob came loose. So i put them back symmetrical and closed the meter, but the meter was still acting weird and in the NCV setting no image on the screen, and the batteries became very hot, a sign of a short circuit. Then i took a look at your video because i knew that you did a teardown of this type and saw at 34:04 that these 6 contact bridges are not placed symmetrical, the 3 bridges on the yellow button side, are placed more to the center of the knob then the 3 bridges on the blue button side. I had placed my contacts symmetrical and that was the issue of the short circuit. Now the meter is back working fine, and i don't see any damage from the short circuit. So a big thank you for this video :-) Grtz
Big thumbs up for this video! Very comprehensive! Nobody else tests multimeters like Kainka Labs! Really love the fact that you switched the Aneng's crappy probes to show that the continuity is fine with decent probes. I don't know why they don't gold plate all the probes. The gold plating can be very thin and it will still be a huge improvement... Self tapping screws are not that bad if you never have to remove them! ;-) And for those in the US, it's $24.67 on ebay with free shipping.
Yes. This is usually done for high-current carrying PCB traces to get a lower resistance. Dave Jones made a video about that practice and has measured the effect.
I dont have the problem with the original probes, not even after 2 years. Maybe cleaning them with a strong soap helps (or vinigar, lightly acidic to remove light passivation). The only thing I dont like in this meter is the accuracy of the 10A range, it is horrible at +5A, maybe the shunt heats up and is of poor quality. (It can read 1A off) And the tiny fuses, hard to replace... The supplied thermocouple is not so good for electronics, it's more suitable for fluids. Luckily the small dot ones are very cheap on aliexpress. I have it in a small drawer of my toolbox/case for my RC hobby so small size was important and the additional small test lead kit was nice, you never know what you'll need when your RC model breaks down. Nice and elaborate review btw 👍
The buzzer works in the UNI-T120 but it is barely audible. The Uni-T is just another pocket multimeter that has many things left to desire (as with all Uni-T devices I ever got my hand on). I have made a separate video about this PoS.
Beeps are only used for continuity testing. In diode-testing you get the forward voltage displayed. And because this voltage varies depending on the type of diode there can´t be a Go/No-Go beep.
No, I have never encountered a multimeter that beeps in diode mode. Reason is simple: A shorted diode would also cause a beep. The purpose of the diode-mode is to show the forward-voltage of the diode if correctly oriented and "OL" (Overload) for reverse inserted diodes.
This is a multimeter for _*electronics*_, not for _*eletricians*_. In my view NCV-testing is just a useless gimmick on a multimeter intended for work at the electronics lab bench. It´s just hip for sime time now, that multimeters started to add this feature. When I am searching for wires or water-tubing inside a wall I am using a specialed device for that task and would never use a multimeter with that untrustworthy feature for that task.
No. The thermocouple thermometer is just a bonus in every multimeter. Sufficient for temperature measurement in live circuits (semiconductors, resistors etc.) is in my view would be even an (in-)accuracy of 5°C. Concerning the quality of the rest of the multimeter it´s probably accurate to 1°C.
man, why did they skip 2 ranges on mA scale , the 10mA [9.999] and the 100mA [99.99] and they went to 1amp [ 999.9mA]. You loos a lot of resolution, instead of displaying 2.555mA it will display 002.5mA. That is extremely stupid...What is the logic behind that....They did this both on AC and DC scales. Same thing on AN8008 and An8009.
Hi Roger, i know this is a old video, but it became very handy today.
My Aneng AN8009 was acting weird (cutting off, not stabilizing in resistance mode etc...) when i barely pressed on the rotating knob.
So i took my meter apart and cleaned the 6 cupper "bridge" contacts from the knob and removed the excessive grease, but 3 contacts from the rotating knob came loose.
So i put them back symmetrical and closed the meter, but the meter was still acting weird and in the NCV setting no image on the screen, and the batteries became very hot, a sign of a short circuit.
Then i took a look at your video because i knew that you did a teardown of this type and saw at 34:04 that these 6 contact bridges are not placed symmetrical, the 3 bridges on the yellow button side, are placed more to the center of the knob then the 3 bridges on the blue button side.
I had placed my contacts symmetrical and that was the issue of the short circuit.
Now the meter is back working fine, and i don't see any damage from the short circuit. So a big thank you for this video :-) Grtz
I made the same mistake and your comment made me realize, thanks!
Excellent review Roger! I just bought one today!
Looks very complete and handy for the price! A great comparison with other multimeters.
Awesome review dude, thank you so much really helpful! Great idea to do a long review 40 minutes!
Big thumbs up for this video! Very comprehensive! Nobody else tests multimeters like Kainka Labs!
Really love the fact that you switched the Aneng's crappy probes to show that the continuity is fine with decent probes. I don't know why they don't gold plate all the probes. The gold plating can be very thin and it will still be a huge improvement...
Self tapping screws are not that bad if you never have to remove them! ;-)
And for those in the US, it's $24.67 on ebay with free shipping.
Thank you for the thorough review!
Excellent review !
The Best Review Ever!!!! Thank you.
Thanks for your video. I'll get one as well and replace one of my old ones I don't trust anymore...
At 28:49 in video, is that solder leading from the small fuse to the shunt (bottom left corner of PCB) ? Anyone know why they did this ?
Yes. This is usually done for high-current carrying PCB traces to get a lower resistance.
Dave Jones made a video about that practice and has measured the effect.
I dont have the problem with the original probes, not even after 2 years.
Maybe cleaning them with a strong soap helps (or vinigar, lightly acidic to remove light passivation).
The only thing I dont like in this meter is the accuracy of the 10A range, it is horrible at +5A, maybe the shunt heats up and is of poor quality. (It can read 1A off)
And the tiny fuses, hard to replace...
The supplied thermocouple is not so good for electronics, it's more suitable for fluids.
Luckily the small dot ones are very cheap on aliexpress.
I have it in a small drawer of my toolbox/case for my RC hobby so small size was important and the additional small test lead kit was nice, you never know what you'll need when your RC model breaks down.
Nice and elaborate review btw 👍
Great explanation... Thanks a lot 😎
Hi, is there any change/way to modify this AN8009 ROM to be able to generate Square Wave Output, as on the AN8008?
Not that I know of
Press the yellow select button on uni-t 120c to activate the buzzer for continuity. Hope this helps
The buzzer works in the UNI-T120 but it is barely audible. The Uni-T is just another pocket multimeter that has many things left to desire (as with all Uni-T devices I ever got my hand on). I have made a separate video about this PoS.
Beautiful multimeter
excellente review, I only like to know if the beep sound when you check diode when is a short.?
Beeps are only used for continuity testing. In diode-testing you get the forward voltage displayed. And because this voltage varies depending on the type of diode there can´t be a Go/No-Go beep.
Hi will this beep in diode mode thanks
No, I have never encountered a multimeter that beeps in diode mode. Reason is simple: A shorted diode would also cause a beep. The purpose of the diode-mode is to show the forward-voltage of the diode if correctly oriented and "OL" (Overload) for reverse inserted diodes.
Hi! What about NCV test? Can it find AC-wire inside a wall? As I seen there is no antenna for that on pcb
This is a multimeter for _*electronics*_, not for _*eletricians*_. In my view NCV-testing is just a useless gimmick on a multimeter intended for work at the electronics lab bench. It´s just hip for sime time now, that multimeters started to add this feature. When I am searching for wires or water-tubing inside a wall I am using a specialed device for that task and would never use a multimeter with that untrustworthy feature for that task.
Worth to buy this an8009?
Search on Ebay, AliExpress, Banggood...
15:40 what happens to your finger? looks bloody
Can´t remember. Anyway nothing serious.
Did you say “a size smaller but the thickness is larger?” Where is AvE? Someone get him here.
do u think its safe to use this multimeter for main voltage?
Yes. No problem. It has the CAT-rating for that.
Thanks for your video.I have just buy this ...
What is the maximum resistance in Meg ohms?. Best wishes from Northern Ireland.
100 MegOhm
Have you tested the accuracy of the thermometer?
No. The thermocouple thermometer is just a bonus in every multimeter. Sufficient for temperature measurement in live circuits (semiconductors, resistors etc.) is in my view would be even an (in-)accuracy of 5°C. Concerning the quality of the rest of the multimeter it´s probably accurate to 1°C.
man, why did they skip 2 ranges on mA scale , the 10mA [9.999] and the 100mA [99.99] and they went to 1amp [ 999.9mA]. You loos a lot of resolution, instead of displaying 2.555mA it will display 002.5mA. That is extremely stupid...What is the logic behind that....They did this both on AC and DC scales. Same thing on AN8008 and An8009.
That's a disappointing result in otherwise a nice meter for the price.
Because there is no Shunt included capable for this resolution in that range
hello can you test and review aneng v8? thank you very much;)
If you send me one, perhaps. I don´t do reviews on demand.
@@KainkaLabs i am not rich sorry. but looks pretty nice multimeter v8
Aneng 8009 is a pretty good multimeter though some electric experts point out its weakness. But it is affordable for everyone.