The smart meter and its technology are advancing rapidly with the aid of sensors. What was once a simple analog device is now a sophisticated piece of electronics that incorporates metrology, microprocessor control, and several wireless technologies. Today's smart meters need sensors to help perform several useful and needed functions, driven by the meters' ever-increasing complexity. With utilities and consumers requiring smarter, more reliable, and more cost-effective meters, sensors are evolving to help next generation meters meet these needs. The cutting-edge technology found in today's advanced, compact sensors only increases the role these components play in the smart meter market.