SAJ July 22, 2025 20:02 Updated To create your SAJ system with us, all you need is your serial number. Click on “Roof system”. Select “SAJ” from the list. Enter your serial number. Done Related articles Why do I only get new values every 5 minutes? Q.Home ESS HYB G2 MegaRevo I just put on my wall box, what do I have to set now?