Kidde AC Plug-In Carbon Monoxide Alarm Detector w/ Battery Backup & LED Indicators $11.85 + Free Store Pickup

Walmart has the Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators on sale for $11.85 for shipping or store pickup. Advanced Sensing: Electrochemical sensing technology detects invisible carbon monoxide gas. Battery Backup: Includes 2-AA batteries to provide protection during power outages. Loud Alarm: 85-decibel alarm alerts you to the presence of carbon monoxide. Easy Installation: Plugs into any standard AC wall outlet and allows use of the upper outlet.