Dual Power (plug in/electric and front load battery) ensures continuous protection to make certain the alarm will work at all times, even during power outages
Multi-function backlit digital screen allows you easily to see the carbon monoxide level and battery power indicators at a glance without pushing any buttons
Peak Level feature displays the highest concentration of carbon monoxide measured since the unit was last reset

Battery-operated combination carbon monoxide alarm and smoke alarm
Uses electrochemical carbon monoxide sensor–the most accurate technology available
Photoelectric sensing technology reduces nuisance smoke alarms