It is possible to have up to 2 Classe 300EOS stations with Netatmo per home. In homes with multiple videophones, it is possible to install 2 Classe 300EOS stations with Netatmo and up to 3 Classe 100x stations. For more information, refer to the technical guide. https://docdif.fr.grpleg.com/general/ouidoo/pdf/legrand-guide-technique-portiers-controle-dacces.pdf