Google Nest Protect Battery Smart Smoke/CarbonMonoxide Alarm

Description When it comes to your family's safety, you can never be too careful. The Nest Protect not only detects threats like carbon monoxide and smoke, it sends alerts to your smartphone via the free Nest app. From Nest. Includes Protect with 6 AA batteries, back plate, four screws, and guides Built-in Wi-Fi Bluetooth LE wireless technology Voice alarms with custom location Split-spectrum sensor Electrochemical carbon monoxide sensor Phone alerts: smoke, carbon monoxide, low battery, sensor failure Six LED lights 2W speaker For use with downloadable Nest app Measures approximately 5-3/8"W x 5-3/8"H x 1-1/2"D UL listed; 2-year Limited Manufacturer's Warranty Imported Unika B. & Co.