s_lanfranchi6 years ago+121Do I need a base station? or can I just buy the add-on camera? I only need it to watch my cats. Thanks a lotShow in original language (German)ecosystem6 years ago000Yes, is required. This camera is for the expansion of an existing system. Otherwise, the Arlo Go might be something - but it needs a 3G/4G data card.Show in original language (German)Comment