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This First Alert 0827B 10-Year Sealed Tamper Resistant Ionization Smoke Alarm features a long-life 3V lithium battery that effectively provides a full 10 years of protection, without requiring any battery change.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.