Products > Test Equipment
Yet another (toy?) DSO - Fnirsi DSO152, 200kHz/2.5MSps (june 2023)
radiolistener:
there is no sense for 200 kHz oscilloscope. If you want 200 kHz bandwidth you can use usual PC sound card or smartphone, it allows to show you waveform and spectrum with 16-24 bit dynamic range.
But 200 kHz bandwidth is not enough even for kids toy oscilloscope.
BillyO:
Something like this is fine for a monkey-see, monkey-do kid playing with PICAXE microcontrollers or an Arduino.
Quite being such a bunch of TEEs (Test Equipment Elitists).
It's far better they spend $30 on something like this and get started in electronics rather than get scared off by the totally unnecessary $300 - $400 expense for an entry level Siglent or Rigol.
Aldo22:
--- Quote from: radiolistener on July 10, 2023, 04:22:41 pm ---But 200 kHz bandwidth is not enough even for kids toy oscilloscope.
--- End quote ---
--- Quote from: BillyO on October 03, 2023, 04:35:15 pm ---It's far better they spend $30 on something like this and get started in electronics rather than get scared off by the totally unnecessary $300 - $400 expense for an entry level Siglent or Rigol.
--- End quote ---
I think you're both kind of right.
I also think that not everyone needs to start with a $400 device, but this one is just too weak.
There are much more usable "toyscopes" for very little more money.
One problem with these cheap Fnirsis (I have a DSO-TC2 with probably the same scope part) is besides the tedious operation (among other things) the minimal timebase of 10µs.
Actually you can't see the waveform properly even at 100kHz (see attachment, same 100kHz signal for both).
Next to it on the image is a Zeeweii, which is available in the one channel version for under $60.
The Zeeweii is also not a "real" scope for "TEEs", but you can see the difference. ;)
For $36, even the DSO154Pro is much more usable.
There are differences even in the world of cheap toyscopes and this Fnirsi just doesn't make sense imo, even for the cheap price.
You'd better check your wallet again to see if you can find another $15. ;)
BillyO:
--- Quote from: Aldo22 on October 04, 2023, 09:18:27 am ---The Zeeweii is also not a "real" scope for "TEEs", but you can see the difference. ;)
For $36, even the DSO154Pro is much more usable.
--- End quote ---
I agree. I am testing 4 of these under $40 scopes for a video series. Two of them are FNIRSI (138Pro & DSO152), one is the original DSO138 and the 4th is the Zeeweii 154Pro. There is just no competition. The Zeeweii is in a class by itself .. by a huge margin .. and woluld 100% be my suggestion for the kid that wants an under$40 scope to play with.
Edit: I will say that FNIRSI have pretty good support. The first 138Pro I got had a fault that caused it to reset frequently. Without much ado they sent me a replacement. I do call that good support.
csuhi17:
If someone is forced to buy a cheap one, at least buy a usable one.
What you can use for a long time and not just throw away.
ZEEWEII is not much more expensive, but has much better features and parameters.
I have many Fnirsi devices, apart from the oscilloscopes, I am satisfied with all of them.
I finally managed to get rid of one of my two scopes, I finally managed to pass it on. I'd be sorry to throw it away anyway.
My other scope DPOX180H was more expensive, but usable, I bought it alongside the ZEEWEII as a second pocket scope.
Support is useless if the product is not worth the price.
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