Review on Kidde P4010LDCS W Emergency Intelligent Interconnect by Ross Decoteau

I was one of the first users. I had to return some due to defects. Turns out you have to select one of these in the middle to use it on the main device. It is not a mesh network per se. Any time you add an additional detector, first connect it to the one you made the main detector and leave it next to the main detector when setting up. I have factory reset all my devices and configured the sensors this way and had no problems.