Products > Test Equipment
KKmoon KKM828: opinions?
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DiTBho:
The KKmoon KKM828 is a 2Mhz "visual" multimeter. I am tempted to buy one just to have something cheap on hands to check if the code of my MPUs are starting to move, plus a couple of measures about the batteries.


ledtester:
Be careful of the "2MHz" specification... it's listed as 2 mega samples per second but the bandwidth is stated here as 1 MHz:

https://www.aliexpress.com/item/4001249211470.html

but I doubt the bandwidth is even that -- it's probably more like 200 KHz.

If you just want to see if your digital I/O lines are twitching you can build a logic probe, e.g.:

https://learn.adafruit.com/some-digital-tools/logic-probe
ledtester:
The KKMoon unit looks the same as the one reviewed here:

DiTBho:

--- Quote from: ledtester on April 14, 2021, 05:13:28 pm ---If you just want to see if your digital I/O lines are twitching you can build a logic probe, e.g.:

--- End quote ---

I need to measure the duty cycle of I couple of PWM operating at 100Khz, some voltages here and there, if possible I would like to avoid to carry on a multimeter only for this, and I have a couple of low DAC units operating at 200Hz.

That's what I need for my simple tasks in automotive.

Umm, a colleague has just told me about her latest purchase: it's a funny DSO-shell that is found with three band-labels on Amazon

* Kuman
* Arceli
* Kmoon (it looks "kkmon" but with only one "k"?!?)
Who is the original company who designed it? Who knows ... anyway, according to what she told me, she  bought Arceli which looks quite a nice little bugger and its analog bandwidth looks to be down just 1 dB @ 5 MHz.

It's declared 20 Msps sample at 5 MHz, she said the the sine wave still looked like a sine wave at 5Mhz, so probably the actual bandwidth is something close to 5Mhz. She concluded the phone telling her new little toy is still much better than anything in its price range.

It's a very low cost DSO-shall powered by a little litium batter, it's not a combined DMM + DSO, and it looks very nice. I am tempted to buy one. It's priced between 50 and 65 Euro on Amazon.

Mumble ... ;D
tunk:
I think they're made by Fnirsi: http://www.fnirsi.cn/

Here's a review:
https://translate.google.com/translate?hl=en&sl=ru&u=https://mysku.ru/blog/aliexpress/72062.html&prev=search

And if you spend a bit more:
https://translate.google.com/translate?hl=en&sl=ru&u=https://mysku.ru/blog/aliexpress/77475.html&prev=search&pto=aue
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