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.

ISA has announced the new DRTS 66, a powerful and accurate test set for protective relays, energy meters (class 0.1) transducers and power quality meters.

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.