First Alert 2-Pack Battery-Operated Carbon Monoxide Detector Item #1093181 Model #FC40CT1P014 Shaft Type: Single Side Flat

Shaft Type: Single Side Flat Shaft

Highest-rated chlorine resistance

offering ventilation with two fan speeds

Pre-mixed compound for minimal mixing

First Alert 2-Pack Battery-Operated Carbon Monoxide Detector Item #1093181 Model #FC40CT1P014 Shaft Type: Single Side FlatThe First Alert CO400 carbon monoxide alarm uses an electrochemical sensor the most accurate technology available. The permanent sensor lasts up to 5 years. It is powered by a 9V replaceable battery giving you peace of mind even during power outages. The test silence button silences the alarm and allows you to test its functionality. The unit monitors and re alarms if carbon monoxide level persist sounding a loud 85 decibel horn. No installation is