Google S3006WBUS Nest Protect, S3000BWES, 2nd Gen, Battery, 3-Pack Alarm-Smoke Price: $459.00 (as of 04/08/2023 12:15 PST- Details)

Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there’s smoke or CO in your home
Split Spectrum Sensor looks for both fast burning and smoldering fires and tells you where the danger is
Get phone alerts so you know something’s wrong, even when you’re away from home [1]