Click to expand Tap to zoom Google Nest Protect Smoke and CO Alarm Battery 3-Pack White + Mini Speaker Charcoal by Google Nest Condition: New Discontinued Sold out SKU E17NESPROTECT3PKW $398.99 $398.99 - $398.99 Current price $398.99 | / 1 2 Quantity Quantity Sold out Item Description Easy to install. Tells you what and where, get alerts directly on your phone. Split-Spectrum Sensor detects fast and slow burning fires. Lasts up to 10 years. 3-Pack