BRK Electronics First Alert Onelink 1042137 AC Hardwired with 3V Lithium Battery Backup Photoeletric Smoke Alarm and Carbon Monoxide Combo Alarm

Add intelligent protection with the Onelink Smart Smoke & Carbon Monoxide alarm. The 2-in-1 alarm detects both smoke and carbon monoxide and will notify residentsif something is not right in their home, whether home or away. The alarm also tells them the type and location of the danger and interconnects with other compatible alarms. Photoelectric Smoke Sensing Technology Electrochemical CO Sensor 2-in-1 Protection – Smoke/fire & Carbon Monoxide alarm Emergency Notifications – Notifies you if something is not right in your home (on your phone) Voice Alerts – Tells you the type and location of danger Interconnected – Interconnected with other compatible alarms Battery Back-up – For protection during power outages Quick, Easy Installation – Adapter plug included. No need to rewire 5-Year Limited Warranty Model# 1042137 Alarm Dimensions 5.88"W x 5.88"L x 1.57"H Alarm Weight 0.75 lbs Operating Voltage 120V AC 60Hz with 3V Lithium Battery Backup