First Alert SCO5CN Battery Operated Combination Carbon Monoxide/Smoke Alarm

Description from Amazon

The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm detects smoke and carbon dioxide all in a single device with its dual permanent sensors. This carbon monoxide and smoke detector is battery operated for easy installation, with no wiring required. The detector warns you of smoke and carbon monoxide leaks with an 85-decibel siren with varying frequencies, and it has a one-touch silence/test button. The CO smoke alarm has been tested to the highest industry standards, is UL-listed, and requires just two AA batteries.

• Combination smoke detector/carbon monoxide alarm detects two threats
• Battery-operated unit installs quickly and easily without an electrician
• Photoelectric sensor detects smoke while minimizing false alarms. 2 AA batteries included. EZ access battery drawer, no need to remove alarm from ceiling to change battery
• Electrochemical CO sensor alerts you to carbon monoxide danger
• A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours

What’s in the Box:

• First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm
• 2 AA batteries
• Mounting bracket with hardware
• Owner’s manual