First Alert 1039868 Photoelectric Smoke & Carbon Monoxide Combo Alarm with 10-Year Battery

• Model number PRC710;• Low-profile smoke & carbon monoxide alarm detects 2 potentially deadly threats;• Slim, easy-to-install design is half as thick as standard alarms;• Built-in 10-year Li-Ion battery offers continuous power for the life of the alarm;• Photoelectric sensor detects smoke & electrochemical sensor alerts if dangerous carbon monoxide levels are detected;• Mounts unobtrusively on the ceiling or wall;• 10-year limited warranty;• Includes mounting bracket;