Wireless Shelly 3EM can be connected to any Wi-Fi network or can operate as an Access Point. Control remotely Control Shelly 3EM directly from your smartphone or tablet and manage its output from the Shelly Cloud app, MQTT, or Rest API. Highly compatible Shelly 3EM is compatible with both Android and iOS. Overconsumption and over energy protection Shelly 3EM will automatically turn off the whole circuit if consumption or energy reaches the set limit. Sunrise/Sunset schedules Automatically follow the sun and turn Shelly 3EM ON/OFF based on the sunrise and sunset hours. Weekly schedules Choose a time and create custom daily schedules for your Shelly 3EM. Monophase systems Shelly 3ЕМ can also monitor monophase electrical systems with up to 3 points simultaneously. Why Shelly 3EM The professional 3-phase energy meter. Shelly 3EM can calculate 2-way consumption: produced and used energy for each of the three phases. The device can be configured to measure three separate points of a mono-phase electrical system and measure each of them separately.