The Nighthawk 900-0234 AC Powered, Plug-In carbon monoxide alarm with battery backup and digital display is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Digital display feature adds an advanced level of protection showing CO levels in PPM allowing you to see if levels change. Written information and instruction make this unit’s operation easy for anyone to understand. The Nighthawk AC/DC Digital alarm has a small, sleek design that is suitable for all living areas and has a 7-year limited warranty.

Features & Benefits

• Digital Display – Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds.
• Peak Level Button – Displays the peak CO level recorded by the alarm since it was last reset or unplugged.
• 9V Battery Backup – Provides continuous protection even during power outages.
• Tamper Resist Feature – Unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet.
• 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 – Life Long Warranty