First Alert 1039824 Combination Smoke & Carbon Monoxide Alarm with Voice & Location

• Model number SCO7CN;• Alarm detects 2 threats;• Programmable talking alarm speaks to indicate the type & location of detected threat;• Photoelectric sensor detects smoke while minimizing false alarms;• Electrochemical carbon monoxide sensor alerts you to carbon monoxide danger from multiple sources;• Battery-operated unit installs quickly & easily without an electrician;• 7-year limited warranty;• Includes 2 AA batteries & mounting bracket;