Multimeter Symbols You Need to Know Voltage. Multimeters can measure direct current (DC) voltage and alternating current (AC) voltage, so they need to display more than one voltage symbol.

Voltage Symbols. Voltage is the pressure that allows electrons to flow from a source and is supplied in both DC (direct ...

That signifies direct current voltage. A wavy line above the voltage symbol indicates alternating current. If your multimeter lacks autorange, then set the voltage range yourself.

The AC symbol is a "V" with a "~" near it. Set it to the range of 200 V. Insert one probe into the left side of the outlet and the other into the right. Since the current is alternating, the probe ...