It's a must-have for any toolbox—but there's a learning curve involved. Learn how to use a multimeter for all of your electrical testing needs.

Multimeter Cost Multimeters are versatile mechanisms that can be leveraged beyond automotive applications. Even basic multimeters can measure voltage and current in household items such as switches, ...

Switch your multimeter to the range that is appropriate for reading the voltage from your power supply. If your power supply's voltage is 125 volts, switch your multimeter to read a range of 100 ...