home alarm security system
99/month expands the basic plan controls and adds video
storage. The professional monitoring plan $14. 95/month adds cellular backup and links
your home to a certified monitoring station that can send emergency responders to your home. This professional monitoring plan is the cheapest among the systems we tested, tied with SimpliSafe. For cellular backup, you need to buy a modem that plugs into the Smart Hub. The keypad in the Security Pack has a built in siren, but it's one of the quietest we tested.