First Alert Hardwired Combination Smoke and Carbon Monoxide Detector Item #40836 | Model #IWHT48443BC Easily accessible forward/reverse switch for

Easily accessible forward/reverse switch for ease of use

Steel construction with zinc plating for added durability

Software Security Updates

Allows the water heater to be set at 140°F (60°C) or higher

First Alert Hardwired Combination Smoke and Carbon Monoxide Detector Item #40836 | Model #IWHT48443BC Easily accessible forward/reverse switch forPrecision Detection technology helps reduce cooking nuisance alarms and provides early warning. Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning Battery backup provides continuous protection during power outages Perfect mount bracket keeps the alarm secure over a wide rotation range for ideal alignment and easy installation Latching Alarm Indicator visually identifies the