Yeah, that's very basic, i would not trust that at anything above audio frequencies, it's ok to just mess around with but saving up for something that has a dsp or better quality would be worth it, I my self use an older fluke combi scope, it has a crt so it's not as portable but that style of scope are cheap these days
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu