• Voice alarms with custom location
• Phone alerts include:
  • Low-battery
  • Smoke
  • Carbon monoxide
  • Sensor failure
• Split-Spectrum Sensor
• Nest App
• App Silence
• Detects carbon monoxide
• 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

• 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
• Phone or tablet with iOS 8 or later, or Android 4.1 or later
• Free Nest Account

• Working Wi-Fi connection: 802.11b/g/n @ 2.4GHz
• Wireless Interconnect: 802.15.4 @ 2.4GHz
• Bluetooth Low Energy (BLE)

Nest Protect has been tested to comply with safety standards in the United States set out by:

• UL

• California State Fire Marshal

Nest Protect complies with all of the following smoke and carbon monoxide alarm standards:

• 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”

The alarm should not be installed in locations where the normal ambient temperature is below 40ºF (4ºC) or exceeds 100ºF (38ºC).
Humidity range: 20%RH to 80%RH (non condensing).

2-year limited warranty. For support, visit nest.com/support.

Our support team is also available by phone 24/7.

• Nest Protect (Battery)
• Six long-life batteries (Energizer® Ultimate Lithium "L91" AA)
• Backplate
• Four screws
• User's Guide
• Welcome Guide
• 2-year limited hardware warranty

• Nest Protect (Wired 120V)
• Three long-life backup batteries (Energizer® Ultimate Lithium "L91" AA)
• 120V AC connector
• Three wire nuts
• Backplate
• Four screws
• User's Guide
• Welcome Guide
• 2-year limited hardware warranty