* Battery Operated – Provides best protection during power outages.

* Digital Display – Shows CO level in PPM (parts per million).

* Updates digital reading every 15 seconds allowing you to see if levels change.

* Backlit Display – To help see the displayed reading in the dark, a backlight appears during the peak level cycle. The light will turn on when the peak level button is pressed.

* Peak Level Memory – Displays the highest CO concentration measured since the last reset.

* Test/Reset Button – Tests CO alarm circuit operation and allows you to immediately silence the alarm.

* Low Battery Signal – Alerts user when the batteries need to be replaced.

* Front Load Battery Door – Provides easy battery access that reduces battery replacement time.

* Battery Safeguard – Makes it difficult to close the cover without batteries in the unit. *Based on accuracy claims of major manufacturers NIGHTHAWK TECHNOLOGY World’s Most Accurate Carbon Monoxide Alarm*

* Digital Display Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds. Peak Level Memory Displays the highest CO concentration measured since the last reset. Large Backlit Display Easy-to-read, even in low light conditions. Test/Reset Button Tests unit’s electronic circuitry & horn and resets the unit during alarm.

* Front Load Battery Door Change battery without removing alarm from the wall.

* LED’s Green LED for normal operation, Red LED for alarm.

* Alerts user to replace CO alarm after 7 years of operation