Shelly Pro 3EM Galvanically Isolated Smart Switch Add-On

The Shelly Pro 3EM Switch Add-On is designed to expand the capabilities of your Shelly Pro 3EM devices, allowing you to control contactors and other electrical devices for greater flexibility and monitoring. The Shelly Pro Add-On can monitor the power generation of solar panels and wind turbines, as well as automatically switching off non-essential appliances to save energy.