3 in 1 Oscilloscope 2 Channel Multimeter Signal Generator 2MHz Bandwidth 250 MS/s Sample Rate

水晶振動子の動作確認用に使いましたが正確に発信周波数をとらえています。

Try this it's good Getting femiler with the product

Nice product 👌

This unit seems to gather some hate for not being like a full power oscilloscope. I say it is very cool for what it is, a voltmeter with oscilloscope functionality in a handheld. I have a full size Rigol dual channel scope I like a lot. The biggest difference is the full size has lots of knobs you can turn to smoothly change the timing, volt range and other features. But this is about the same price as a decent voltmeter, and I can certainly see taking this onsite to not just look at the voltage, but see what the line is doing and maybe do some advanced debug without hauling the big scope out.

Recently purchased, good, complex device, need more time. Thanks 👍