VEVOR SDS1102 Benutzerhandbuch Seite 9

To avoid body damage and prevent product and connected equipment
damage, carefully read the following safety information before using the
test tool. This product can only be used in the specified applications.
Warning:
The two channels of the oscilloscope are not electrically isolated. The
channels should adopt a common ground during measuring. To
prevent short circuits, the 2 probe grounds must not be connected to
2 different non-isolated DC levels.
The diagram of the oscilloscope ground wire connection:
It is not allowed to measure AC power when the AC-powered
oscilloscope is connected to the AC-powered PC through the ports.
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