Here is how that looks in a typical two story home, using the Ajax home alarm range as the worked example. The same logic applies to other platforms. Everything reports to the hub, so pick it first. Ajax’s Hub 2 Plus handles up to 200 devices, connects over Ethernet, Wi Fi, and two SIM cards, and runs for up to 15 hours on its own battery. That means a dead router or a power cut doesn’t leave you blind. Put it somewhere central, like a hall cupboard, and not right beside the front...
