First Alert CO400B Carbon Monoxide Detectors, White Soft High performance

High performance

flood to spot beam

Suncrest 4870

Not intended for use on any type of textured or uneven surface

Raised protective border

First Alert CO400B Carbon Monoxide Detectors, White Soft High performanceWorks during power outages. No installation required. Place or mount almost anywhere. Mute test button to quiet unnecessary alarms, test alarm function. 85 decibel alarm, low battery warning. Low battery mute quiets low battery signal for up to 8 hours. Front open compartment allows battery change without taking alarm down. Electrochemical sensor is the most accurate technology available for detecting carbon monoxide. End of life timer alarm chirps