Smart meters are advanced devices that measure electricity, gas, or water usage in real-time. Unlike traditional meters, they automatically send usage data to utility companies, allowing for more accurate billing and better energy management. This technology helps consumers monitor their consumption patterns and make informed decisions about their energy use. These meters often come with digital displays that show current usage and costs, promoting energy efficiency. Additionally, smart meters can help utilities detect outages and manage resources more effectively, contributing to a more reliable and sustainable energy grid.