How It Works: "Motion sensors + AI = virtual fence that alerts you to intruders – 30SGD/month!" "Our system creates an invisible security boundary around your property – 30SGD!" "When someone crosses your virtual fence, you get instant alerts – 30SGD/month!" "No digging or construction – set up a virtual fence in minutes for 30SGD!" "Works day and night – rain or shine – ... https://www.qualityinternetdirectory.com/