When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

Thermal imagers are invaluable to help quickly troubleshoot electrical equipment, panels, and transformers but electricians and maintenance technicians often do not have access to one when they need ...