This convenient security bundle lets you protect and monitor your home from anywhere the smart home security kit includes a connected home hub a door amp window sensor a siren with optional battery back up1 and a monitor hd these devices talk to each other and with the mydlink home smartphone and tablet app1 you can decide what it is you would like them to do easy to set up simply download the mydlink home app2 and the step by step setup wizard will help you set up all the devices in the kit y