OptoEMU Sensor DR is a compact energy monitoring unit for commercial and industrial facilities. Connected to utility meters, plant equipment and facility systems, it gathers real-time energy consumption and demand data, and delivers it to enterprise business and control systems and Web-based applications for monitoring and analysis. The OptoEMU DR is available in two models, one for use on both wireless and wired Ethernet networks, and one for use on wired Ethernet networks only.