Kidde KN-COSM-XTR-B Nighthawk Intelligent Alarm, Combination Carbon Monoxide, Fire and Smoke for $38.87

Offering breakthrough technology to provide maximum protection for your family, the Kidde KN-COSM-XTR-B intelligent alarm combines fire, smoke, and carbon monoxide (CO) alarms into a single device. And more than just beeping alerts, the KN-COSM-XTR-B provides voice warnings that clearly state the present danger-- announcing either "Fire! Fire!" or "Warning!