For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

If you're concerned about a faulty breaker not letting through the right amount of voltage (or any at all), this is fairly easy to test with a multimeter, if you have one and understand their ...

For automotive circuits, we recommend an auto-ranging meter with at least 20MΩ of internal resistance. Make sure to use the correct multimeter setting for a car battery.

My stepfather wired my basement and I'm installing the outlets (eg. placing the wire on the outlet itself), but I'm not sure which circuit breakers to turn off.How can I tell if a power line is ...

Once the power to the water heater is turned off, you can test the elements with a multimeter. There will be two panels on the side—one for the upper element and one for the lower.