Can I use two Nest Protect detectors in the same home?

Best answer: Yes. Up to 10 Nest Protects can be used with the same Nest account, in one or multiple locations.

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Multiple Nest Protects are supported

You probably have more than one smoke alarm in your home right now, and that's because multiple units are needed according to national and local law. The National Fire Protection Association (NFPA) regulations for residential dwellings — single family homes that don't house a business or provide care services — say you'll need an alarm in multiple areas, including all sleeping areas, every level that's separated by a door, new homes built since 2007, and for certain-sized dwellings, one every 500 square feet of floor space.

Luckily, your Nest account allows up to 10 Nest Protects enabled at once and these can all be in the same location or spread across several different locations (we recommend the latter).

And you're going to want to get that full protection. Nest Protects are both smoke and carbon monoxide detectors, so you'll be covered. However, it goes beyond just a typical smoke detector. Nest Protects are smart, so they can not only regulate themselves but have multiple settings, including a Home/Away Assist feature that uses sensors to detect whether you're home or not. It can also contact up to 20 people via smartphone if one of them goes off.

Best of all, because they're smart, they won't deafen you while going off. That's literally music to our ears.

Jerry Hildenbrand
Senior Editor — Google Ecosystem

Jerry is an amateur woodworker and struggling shade tree mechanic. There's nothing he can't take apart, but many things he can't reassemble. You'll find him writing and speaking his loud opinion on Android Central and occasionally on Twitter.

  • I like 'em, but they're still not smart enough to know I'm cooking a steak. They need a 15min 'snooze' feature.
  • But they do give you a warning before they go off, so you have time to tell them to ignore the smoke.
  • Yes, I've been using two Nest Protects for several years. No problems and they identify separately when they run the tests. You set the first one up per the directions and the 2nd sets up to the 1st by itself (it's all in the instructions). Total setup time was about 5 minutes.
  • Yes, I have 9 of them through out the house. When one of them goes of it also sets the other 8 off as well alerting what room the smoke is in. It's pretty cool honestly.
  • Why is the limit 10? I'm using 11nest protects in same house and account just fine.
  • Officially 10 but the software can handle more.