Kidde Battery Operated Carbon Monoxide Alarm. The Kidde 900-0233 (Model KN-COB-B-LS-CA) is a 3 AA, battery operated carbon monoxide alarm that uses electrochemical sensing technology to protect you and your family from the dangers of carbon monoxide.
The battery operated CO alarm provides continuous monitoring of CO levels and includes multiple mounting options allowing installation on a wall or tabletop.
The 900-0233 is suitable for all living areas and has a 10-year limited warranty.
Features: 3 AA Battery Operated – Provides continuous protection and flexible installation for areas with no AC outlets. Test/Reset Button – Tests the unit for proper operation. Resets the carbon monoxide alarm. End of Life Notification – Ten (10) years after unit is first powered, this alarm will emit two red LED flashes and two beeps every 30 seconds to indicate it is time to replace the alarm.