The Nighthawk 900-0235 AC Powered, Plug-In carbon monoxide alarm with battery backup is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Written information and instruction make this unit’s operation easy to understand for anyone. The Nighthawk AC/DC Basic alarm has a small, sleek design that is suitable for all living areas and has a 7-year limited warranty.

Features & Benefits

• Tamper Resist Feature – Unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet.
• 9V Battery Backup – Provides continuous protection even during power outages.
• Test/Reset Button – Tests the unit for proper operation. Resets the Carbon Monoxide alarm.
• 7-Year End of Life Warning – Alerts user to replace CO alarm after 7-years of operation. (40% longer than other CO alarms)
• UL Listed – Lifelong Warranty