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First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, White

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Smoke Detector Base,6", 4 Wire W/Relay, 24 Volt. System Sensor Model #B112LP

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First Alert 1039856 Battery Powered Smoke Alarm Escape Light

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First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector

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SIEMENS SSD-C-REM - Remote LCD Dsply W Control Brand New In Factory Sealed Bag!

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First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector