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.” ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? A digital multimeter is an indispensable tool for testing, diagnosing, and ...

You hop in the car, turn the key or push the start button ... nothing. Or maybe one of your headlights goes out when you're driving at night on a highway. Maybe during a long road trip, your radio ...