What is a voltage tester? How do I use it?

A voltage tester is an inexpensive tool that could save your life. Depending on the model, you simply plug the voltage tester into a receptacle or touch a screw terminal on the faceplate of a receptacle or switch. If an electrical current is running through the receptacle/switch, the voltage tester will either register volts on its meter, light up or both (depending on the model).

Find the right voltage tester to fit your needs.

Check your state and local codes before starting any project. Follow all safety precautions. Every effort has been made to ensure the accuracy and safety of this information. Neither Westlake nor any contributor can be held responsible for damages or injuries resulting from the use of the information in this document.