I recklessly and naively recommended someone get one of the cheap handheld digital o'scopes to help troubleshoot alternator issues.
He got an FNIRSI 2C53P (not cheap but includes a multimeter and signal generator and is 2-channel).
When he reported trouble with displaying a good signal (we're talking 12V DC plus 20 to 3,000Hz signals here) I started watching youtube reviews and found there are settings where scope displays garbage. I started looking at other similar scope reviews and found that it seems to be a common issue that you can't trust what you see on them.
So here is the question: have any of you bought a low-cost (< $100) handheld digital o'scope that's trustworthy?
Brand? Model?
Finn
He got an FNIRSI 2C53P (not cheap but includes a multimeter and signal generator and is 2-channel).
When he reported trouble with displaying a good signal (we're talking 12V DC plus 20 to 3,000Hz signals here) I started watching youtube reviews and found there are settings where scope displays garbage. I started looking at other similar scope reviews and found that it seems to be a common issue that you can't trust what you see on them.
So here is the question: have any of you bought a low-cost (< $100) handheld digital o'scope that's trustworthy?
Brand? Model?
Finn
