The Siemens INHEM1216 Inhab Energy monitor installs in common electrical panels to send usage and production data to the cloud and mobile app, it reports how much energy is being used or generated in real time to reduce unnecessary consumption, the Inhab Energy Monitor doesn't rely on assumptions about your appliances; it directly connects to the circuits that matter most to you, such as your furnace, air conditioner, refrigerator, washer and EV charger. No algorithms, no guessing and no waiting, the Inhab Energy Monitor gives you up-to-the-minute information on your energy usage. Start your smart living journey with the Inhab Energy Monitor, Product includes energy monitor, wire harness, 2 x 200A CTs, 16 x 50A CTs, WiFi antenna assembly, 2 x wire nuts and splicing wires. Supported Systems: Single phase, 2-wire systems; Single-split phase, 3-wire systems; and 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta).