FIRST ALERT CO9B10DA

Battery powered CO Alarm with 10-Year sealed 3 V lithium battery features a backlit digital display that shows visual confirmation of CO levels, Peak Level Memory, current room temperature and other operating conditions and Silence feature. Includes electrochemical CO sensor. End of Life Signal provides audible notification alarm needs to be replaced. Backlit Digital Display for clear, instant visibility of CO levels. Standby mode displays current room temperature. 10-Year Sealed Battery, for continuous detection. No battery replacements required for the life of the alarm. Tamperproof Sealed Alarm Powercell cannot be removed. Peak Level recall feature. 10-Year Limited Warranty.