First Alert Dual-Sensor Smoke and Fire Alarm White 1039828 - Best Buy

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The detectors feature electrochemical CO sensing technology ionization sensors for smoke detection and 85-decibel alarms. One button silences any nuisance alarms and also tests detector functions while lights indicate if the alarm detects smoke or carbon monoxide.

First Alert SA320CN Dual Sensor Battery-Powered Smoke and Fire Alarm

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First Alert SA320CN Dual Sensor Smoke Alarm with Nuisance Resistance

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Protect your family with this First Alert Z-Wave smoke and carbon monoxide detector. Real-time notifications sent to your iOS or Android device alert you while away from home, and the loud 85dB siren is easy to hear. This First Alert Z-Wave smoke and carbon monoxide detector features a photoelectric sensor to help prevent false alarms while cooking or showering.

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