KIDDE 21027904 Photoelectric Smoke Alarm - 120V with 10 YR Sealed Lithium Battery

The P4010ACS-CA is an AC/DC powered smoke alarm with 10 year battery backup that features interconnect capability and provides enhanced intelligibility for users. The voice warning feature accompanies the 85dB tone during an alarm event, and helps reduce confusion with verbal announcements such as "Replace Alarm" at end of alarm life, and "Hush mode activated" when a nuisance alarm is silenced. The three color LED ring helps users quickly determine standby, alarm, or error mode of the alarm. Kidde P4010 Series Alarms contain 10-year tamper proof batteries that eliminate the need for battery replacement, and ends worry over unauthorized removal.