The Shelly LoRa Add-on is designed to extend the connectivity of your Shelly Gen3 and Gen4 devices up to 5 km using an outdoor antenna. Utilizing LoRa radio technology on the EU868 frequency band, it ensures a reliable connection even in hard-to-reach areas. Ideal for automating public lighting or remotely controlling equipment in offices, shops, or warehouses, this device also allows for remote irrigation scheduling to save energy. The installation is simplified via Shelly's proprietary serial interface, compatible with Shelly Gen3 and Gen4 devices using firmware version 1.6 or later. The pack includes two Shelly LoRa Add-on units, each measuring 42 mm in width, 11 mm in length, and 40 mm in height, with a total weight of 10 grams. The product is made of black plastic and is delivered in a package measuring 4.1 x 5.0 x 12.5 cm. For initial setup, ensure you have at least two devices: one to emit the signal and another to receive it.