Class 1000 single-phase kWh meters are fully electronic, low-cost meters for monitoring electrical usage in multi-family, commercial, industrial or other single-phase applications. E-Mon meters with patented 0-2 volt output split-core current sensors allow for quick and safe installation without power interruption. These sensors allow for meters to be remotely located up to 2,000 feet the electrical panel they are monitoring. multiple sets of sensors can be installed on one meter to provide cumulative usage readings for multiple loads. Supplied with two split-core sensors.