An electricity meter is a device that measures the amount of electrical energy consumed by a home or business. It records the usage in kilowatt-hours (kWh), which helps utility companies bill customers accurately. These meters can be analog, with dials that show usage, or digital, displaying numbers on a screen. Modern smart meters are an advanced type of electricity meter that can communicate data wirelessly. They provide real-time information about energy consumption, allowing users to monitor their usage and make informed decisions about energy efficiency. This technology helps both consumers and utility companies manage electricity more effectively.