The Google Nest Protect does a self-test every 200 seconds, so itâs always making sure everythingâs working right. It's checking up on both the smoke and carbon monoxide sensors and also the batteries. This keeps things running smoothly and gives you a bit of extra peace of mind.
Nest Protect is built to last up to ten years from when itâs made. This is pretty standard according to the National Fire Protection Association (NFPA). But do remember, this ten-year countdown starts from the manufacturing date, so when you're buying one, itâs a smart move to check that date to make sure youâre getting full use out of it.
We did notice some mentions about folks getting older units, which could mean they wonât last the full ten years. A helpful tip is to pick it up from a local store where you can easily check that manufacture date on the box.
Besides that, a lot of people love how the Google Nest Protect fits in with smart home systems. It connects with your other devices and sends you real-time alerts on your phone, whether you're home or not.
So, youâre always in the loop on whatâs happening back at home.
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How we researched this
Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen May 13, 2025.
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