<human>:  How do I use a voltage tester?
<bot>: Use Voltage Testers
1. Connect the black prove to the "COM" or "-" port.
2. Connect the red probe to the voltage "V" port.
3. Select AC or DC mode on the dial.
4. Select the appropriate voltage range you are testing.
5. Place the black probe on the negative terminal, ground, or neutral wire.
6. Place the red probe on the positive terminal or hot wire.