The Kidde 21031482 is a 120V AC hardwired smoke alarm with photoelectric sensing technology that reduces false alarms from cooking. Includes 2 AA battery backup for protection during power outages, and interconnects with other Kidde alarms.

• Photoelectric sensor with enhanced technology reduces cooking false alarms
• 120V AC hardwired with 2 AA alkaline battery backup (included)
• Interconnectable - when one alarm sounds, all linked alarms sound
• Loud 85 dB alarm with red LED visual indicator
• Sleek 5 in. low-profile design
• UL listed to the latest safety standard
• Replace backup batteries every 6 months