Alarms & Smoke Detectors

Smart smoke detectors and alarm systems might not be exciting, but they're arguably the most important smart home purchase. The real value is getting a phone notification when something triggers while you're away. A traditional smoke alarm screaming in an empty house does nothing. A smart one that texts you "smoke detected in the kitchen" while you're at work? That's the difference between catching a problem early and coming home to a disaster.

Smart smoke and CO detectors:

• Interconnected alerts - When one triggers, they all trigger, and your phone tells you which room. With traditional detectors, you hear beeping but have no idea which one until you run through the house.
• The Nest Protect - The most popular option. Looks good, speaks to tell you what's wrong and where, does pathway lighting at night, and tests itself. The catch is price - about $120 per unit, and you need one per room. For a typical house that's $500-800 in smoke detectors. Worth it if you can swing it.
• Budget picks - First Alert and Kidde make smart detectors for less. They lack the Nest's polish, but they send alerts and interconnect, which is what matters most.
• Battery vs hardwired - If you have existing hardwired detectors, get smart replacements that use the wiring. Otherwise, battery models are easier. Sealed 10-year batteries mean no more 3 AM low-battery chirps.

Smart alarm systems:

• Professional vs DIY monitoring - Professional monitoring ($10-25/month) means a call center contacts emergency services for you. DIY means you get the alerts and handle it yourself. Pro monitoring is worth it if you travel often, but many people are fine with self-monitoring.
• Popular systems - Ring Alarm ties into Amazon's ecosystem and is affordable. SimpliSafe is straightforward with no contracts. Abode integrates well with HomeKit and other platforms.
• Cellular backup - Make sure your system has cellular backup, not just Wi-Fi. If your internet goes down, a Wi-Fi-only system goes with it.

Start with smart smoke and CO detectors in every bedroom, hallway, and common area. Then decide if a full alarm system fits your needs. Renters should look at portable options like SimpliSafe that move with you.