List Price: $64.97 Deal Price: $21.75 You Save: $6.24 (67%)The easy-to-install Kidde KN-COSM-B battery-operated carbon monoxide and smoke alarm combines two important safety devices into a single unit. Its voice warning system makes four separate announcements: fire, carbon monoxide, low battery, or smart hush activation.Expires Jul 3, 2012

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