Google Nest Protect – Smoke + CO Alarm, Pathlight, Steam Check, WiFi, Google Home

Google Nest Protect – Smoke + CO Alarm, Wired or Battery, Split-Spectrum Sensor, WiFi

The Google Nest Protect is the world’s most intelligent smoke and carbon monoxide alarm — the only detector that speaks to you in a calm voice to tell you exactly what’s wrong, where, and what to do. With Split-Spectrum sensing technology, it detects both fast-flaming and slow-smoldering fires earlier than conventional alarms, while the companion Google Home app gives you complete control and instant mobile alerts from anywhere.

About This Item

• Split-Spectrum Smoke Sensing: Nest Protect uses split-spectrum technology to simultaneously detect both slow-smoldering fires (the most deadly type) and fast-flaming fires. This dual-approach detects danger earlier than single-technology detectors, giving you more time to respond.
• Pathlight Night Light: When you walk past Nest Protect at night, it automatically illuminates as a gentle night light. This prevents stumbling in the dark and also signals that the battery is fine. A green glow means everything is OK — a heads-up before you go to bed.
• Steam Check Reduces False Alarms: Before sounding a full alarm, Nest Protect checks itself to see if the air is simply humid (from cooking or a shower) and gives you a heads-up warning first. This intelligent pre-alarm reduces unnecessary false alarm disruptions by up to 65%.
• Speaks to You: Instead of just beeping, Nest Protect announces “Heads up! There’s smoke in the hallway” in a calm human voice. This tells you exactly what type of danger and precisely where it is in your home so you can respond appropriately and quickly.
• Google Home App Integration: Receive instant mobile alerts on your smartphone wherever you are. Test all your Nest Protects with a tap in the app, check battery status, and see a complete history of any alerts. Works with all Google Nest and Google Home devices.
• Nightly Promise: Every night when your home goes quiet, Nest Protect runs a self-test of its sensors, battery, and connections. If everything passes, the LED glows green as it dims — a reassuring “goodnight” that keeps you safe while you sleep.
• Emergency Interconnect: When one Nest Protect detects danger, all interconnected units throughout your home sound simultaneously, alerting everyone regardless of where they are in the house. Up to 18 units can be connected for whole-home protection.

Product Information

Customer Reviews Highlights

★★★★½ 4.5/5 from 18,000+ verified buyers — Customers consistently praise the human voice alerts as dramatically superior to simple beeping alarms. The Pathlight night light is a frequently mentioned unexpected favorite. Parents particularly appreciate knowing which room has the alert. Multiple reviewers mention the Google Home integration providing peace of mind when away from home. Widely considered the most user-friendly smart smoke alarm available.