Radio Shack 22-218 Owner's Manual page 28

Follow these steps to measure AC voltage.
1. Set the function selector to one of the
Note: If you are not certain about the voltage level, start
with the 1000 AC V range. Then try the next lowest
range until the reading appears in the upper third of the
meter scale.
2. Connect the test probes to the circuit.
3. Read the voltage on the scale.
28
positions.
AC.V