ground your probe where it says ground nearby. I is a banana jack, but just hold your probe ground lead to it. You probably have an alligator clip lead on the probe.
Just stick the tip of your probe there. If you have the 'witch's cap' pull back to protrude the hook and touch it there. If you take it off, or likely possible, it is missing, just touch the pinpoint of your probe there.
Some may say this is a troll or a joke, I've been there, done that, got the tee-shirt, and explained to EE's that they did not have to return their new instrument batteries I installed to the factory to be charged.
Likely it was quality assurance engineer, forgot.
60 mhz analog with digital features is a nice find.
Please don't blow it up look at dave's "how not to blow up your oscilloscope" video. You need to read and understand that.
If a bit technical, ask here.