Security products like cameras and alarm systems tend to be most people's first foray into home automation. Smart door locks, alarm systems, cameras and movement sensors can offer peace of mind when you're away from home. August Smart Lock is an easy way to lock and unlock your doors remotely through a phone app, making it popular for offices and shared workspaces. The Skybell Doorbell lets you see who's at your door and speak to them through your phone, even if you're not home. Plus there are many alarm system starter kits out there, like Nest Secure, Go Abode, SimpliSafe and more.