First Alert CO400 and SM210 combo packs New in Box
The First Alert CO400 and SM210 combo pack is a white smoke alarm set that operates on a single battery. With a 5-year manufacturer warranty, this portable unit features a 90 dB operating sound rating and is designed for home security. Made in the United States, this battery-operated alarm includes one battery and is easy to install. Perfect for improving home safety, this combo pack is a reliable choice for protecting your home from smoke and gas hazards.