WebSep 14, 2004 · The 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.
First Alert Smoke & Carbon Monoxide Detectors Costco
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First Alert 9120LBL BRK Brands Hardwire Smoke Alarm with 10 …
WebOct 10, 2014 · Buy First Alert Slim Photoelectric Smoke Alarm with 10-Year Sealed Battery, PR710, White at Amazon. Customer reviews and … WebThe First Alert Battery Operated Smoke Alarm features 2 alarms and provides the ideal defense for detecting fast flaming fires. Natural additions in the home or place of business, these smoke alarms utilize ionization technology that recognize and detect smoke as soon as it enters each unit's chamber. WebJan 1, 2008 · This item: First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack. $59.99. In Stock. Ships from and sold by Amazon.com. Get it as soon as Friday, Apr 14. First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup. $39.99. In Stock. brühl info tickets