The Cerbo-S GX sits at the heart of your energy installation. All the other system-components - such as inverter/chargers, solar chargers, and batteries - are connected to it. The Cerbo-S GX ensures that they all work in harmony. There is an optional touch screen accessory for the Cerbo-S GX called the GX Touch. Monitoring of the system can be done either with the Cerbo-S GX in front of you - or from anywhere in the world using an internet connection and the VRM Portal. The Cerbo-S GX also provides Remote firmware updates and allows settings to be changed Remotely. The Cerbo-S GX is part of the GX product family. GX products are Victron's state-of-the-art monitoring solution that run our Venus OS operating system. All the information in this manual refers to the latest software. You can check your device has the latest version in the Firmware menu when the GX device is connected to the internet. For installations without internet, you can find the latest version in Victron Professional.