First Alert Smoke And Carbon Monoxide Alarm, 2 Aa Batteries

Basic Battery Operated Photoelectric Smoke/Co Combo Alarm Meets Most State And Local Codes For Carbon Monoxide And Combination Alarms. Easy Alarm Identification Through Different Horn Sounds And Lights Single Button Test/Silence Photoelectric Smoke And Electrochemical Co Sensors 2Aa Batteries - Save 33% On Annual Battery Replacement Costs Vs. Other Smoke/Co Combo Alarm Brands That Use 3Aa Batteries End Of Life Signal Provides Audible Notification Alarms Needs To Be Replaced 7-Years Limited Warranty

First Alert Smoke And Carbon Monoxide Alarm, 2 Aa Batteries