First Alert 1039879 Smoke (SA303) & Carbon Monoxide (CO400) Detector Combo Pack

• Model number SCO403
• Bundles together a smoke alarm & carbon monoxide detector
• Ionization smoke sensor reliably detects smoke from fast-flaming fires
• Electrochemical sensor accurately detects carbon monoxide
• Battery-operated alarms install easily without the aid of an electrician
• Loud 85dB alarms
• SA303 has 10-year limited warranty & CO400 has 5-year limited warranty
• Includes 2 9V batteries & mounting bracket

• UPC 29054019233