What cheap oscilloscopes do you guys advise for these type of college projects?

Thread Starter


Joined Nov 24, 2021
So to help me choose one this is one of the things i am trying to develop right now for college:


I already made a post about that sound level meter but now i need to implement this in real life and for that i need the help of an oscilloscope which i still need to choose and buy.

I need to work with signals where its frequency is around 1kHz-100kHz

Also have to keep in mind that it needs to read values in the mV, like this:


I'm just a student and dont want to spend thousands so i was looking for cheaper options, like for example, the hantek 6022 which is currently around at 60€-80€. One thing that i am not sure is if those cheap oscilloscopes introduce significant noise at low amplitudes (mV) because i really need to see the signals like those shown in the second image well.

I would like if you guys could advise me any cheap oscilloscopes that can meet my demands.

I tried looking for used ones in my area but all i found are very old oscilloscopes, not even sure if they work


Joined Sep 17, 2013
You could use a PC's/laptop's sound card and the free Audacity software to analyse audio signals in the 20Hz-20kHz range.