First Alert
Onelink Smoke Detector and Carbon Monoxide Detector | Hardwired Works with Alexa | First Alert
  • 2-in-1 hardwired smoke and carbon monoxide alarm alerts you to both types of danger in your home, with a photoelectric smoke sensor and electrochemical carbon monoxide sensor
  • Alarm sends emergency notifications via your phone, while voice alerts tell you the type and location of danger
  • Interconnects with existing traditional hardwired alarms and other Onelink devices (sold separately) to create a smart home safety network, so if one alarm sounds, they all sound; works with Amazon Alexa so you can ask Alexa to check the status of your Onelink alarm (Alexa device sold separately).
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