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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Includes SilentShield sound-absorption technology
UV protectors to increase resistance to cracking and fading
high-tensile thread is suitable for indoor and outdoor uses
Weather protection and performance with no filter to clog
First Alert CO400B Carbon Monoxide Detectors, White Bi-metal Includes SilentShield sound-absorption technologyWorks 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
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