First Alert CO400B Carbon Monoxide Detectors, White Bi-metal Telescopic shaft adjusts to user's

Telescopic shaft adjusts to user's height and posture

Tip Type: Double Fork

Provides a full coverage of radian shimmer for many surfaces including wood

Sure-Lite ignition system

First Alert CO400B Carbon Monoxide Detectors, White Bi-metal Telescopic shaft adjusts to user'sWorks 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