How to Check 115 or 230 on a Voltage Meter
A voltmeter is a device that is used to measure the voltage of an electrical outlet or battery. A voltmeter is also known as a voltage meter. Some voltmeters are mounted in a panel while others are portable units. It is often more practical for electrical professionals to use a portable device that measures not only voltage, but also other electrical measures such as current and resistance. One such device is the volt/ohm meter or VOM. The volt/ohm meter is sometimes referred to as a multimeter or a multitester. Both the voltmeter and the multimeter may be either analog or digital. An analog meter moves a pointer across a scale to reflect the voltage of the circuit. A digital meter gives a numerical or "digital" display of the voltage of the circuit.