Base For Smoke alarm GS511 - RC3

In this solution, the 10 years smoke alarm GS511 is the host, it can connect to other sensors by RF or wire. All devices alarm messages can send to the host smoke alarm GS511, and then the host re-send them to the sigfox base and the sigfox base station. On the one hand, this solution can easily add exsiting RF products and AC alarm, on the other hand, it can save customers' money. Pls refer to the enclosed photo that is easy for understanding.