The Nest Protect has been redesigned from the inside out. It has an industrial-grade smoke sensor, tests itself automatically, and lasts up to a decade. It's also the first home alarm that can be hushed from a smartphone without any extra hardware required. it tells the user what’s wrong and can even alert their phone. Nest Protect has a friendly human voice that provides an early warning. And when one speaks, they all speak. So the alarm in the bedroom can tell when there’s smoke downstairs. That way, those in the home can handle burning toast before it becomes a burning toaster. The Nest Protect is the first alarm that uses Sound Check to quietly test its speaker and horn once a month. The Nest Protect also features Pathlight, a customers’ favorite, which lights up when walking underneath a Nest Protect at night. And Nest Protect is the only alarm with Steam Check, using custom algorithms and a humidity sensor to look for steam, understanding the difference between steam and smoke.

Features:

• Voice Alarms with Custom Location
• Carbon Monoxide Detection
• Phone Alerts Include:
• Low-battery
• Smoke
• Carbon Monoxide
• Sensor Failure
• Split-Spectrum Sensor
• Nest App
• App Silence
• Heads-Up Alerts
• 10-year product lifetime
• Sound Check
• Nightly Promise
• Self Test
• Pathlight
• Steam Check
• Wireless Interconnect
• Safety History
• What To Do
• Home Report
• Emergency Shutoff with Nest Learning Thermostat
• Emergency clip record with Nest Cam

The foam and particle board in much of today’s furniture make fires burn faster. Technology should keep up. The Split-Spectrum Sensor uses two wavelengths of light to detect smoke from both fast-burning and smoldering fires. And heating systems can cause carbon monoxide leaks or spread smoke through the home in a fire. In an emergency, Nest Protect tells a connected Nest Thermostat to turn off the heat to keep the danger from spreading. That’s why Nest Protect has the most accurate type of carbon monoxide sensor available. Nest also improved their carbon monoxide sensing algorithm, and has a commitment to keep working to make it better and better.

Hush alarms with a smartphone, not a dish towel. If everything’s under control and there’s only a little smoke, quiet down the alarm from the Nest app. And everyone in the family can know what’s going on, from anywhere. When something’s wrong, Nest Protect sends everyone an alert, just in case no one’s home. And the Safety Checkup tests all the Nest Protect alarms with a simple tap on the smartphone app. And once the test is done, the Nest Protect provides a full report.

Included:

• (3) Long-Life Backup Batteries (Energizer® Ultimate Lithium "L91" AA)
• 120V AC Connector
• (3) Wire Nuts
• Backplate
• (4) Screws
• User's Guide and Welcome Guide

Specifications:

• Split-Spectrum Sensor, 450nm and 880nm wavelength
• 10-Year Electrochemical Carbon Monoxide Sensor
• Heat Sensor, ± 1.8ºF (± 1ºC)
• Humidity Sensor, ± 3%RH
• Occupancy Sensor, 120º field of view to 20 feet
• Ambient Light Sensor, 1-100k Lux Dynamic Range
• Omnidirectional Microphone, 70dBA SNR
• 2 Watt Speaker
• Horn: 85dB SPL at 10 feet (3 m)
• RGB Color Ring with 6 LEDs
• Wi-Fi Connection Requirements: Free Nest Account and Phone or tablet with iOS 8 or later, or Android 4.1 or later
• Certifications:
• California State Fire Marshal
• UL 2034 - “Single and Multi Station Carbon Monoxide Alarms”
• UL 217 - “Single and Multi Station Smoke Alarms”
• NFPA-72 - “National Fire Alarm and Signaling Code”
• Dimensions (WxHxD): 5.3" x 5.3" x 1.5" (13.5cm x 13.5cm x 3.85cm)
• Mass: 13.2 ounces (375 g)
• 2-Year Limited Warranty