How to judge the quality of the multimeter's AC voltage file (ACV)
Multimeter AC Voltage Range (ACV)
Household testing sources include: AC adapter, household socket (two-phase 220V, it is best not to measure three-phase 380V, because this voltage is more dangerous, for the instrument (at least a multimeter with CAT III 600V) and the user. higher requirements).
For safety reasons, it is recommended to measure relatively small voltages, such as AC adapters, and then measure the voltage of household sockets. For specific safe operation methods, please refer to the product manual.
The test voltage of the multimeter is that one sign (DCV) (ACV): DCV is DC voltage, ACV is AC voltage.
