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Smoke/Carbon Monoxide Wired-Al
Smoke/Carbon Monoxide Wired-Al
Smoke/Carbon Monoxide Wired-Al
Smoke/Carbon Monoxide Wired-Al
Smoke/Carbon Monoxide Wired-Al
Smoke/Carbon Monoxide Wired-Al

Nest Protect (Wired) 2nd Generation - White

Frys#: 8668910 Model: S3003LWES
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open box starting at $17,990.99
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Overall Customer Rating

There's never been a smoke and CO alarm quite like this. Nest Protect looks for fast-burning fires, smoldering fires, and carbon monoxide. It also speaks up when there's a problem, can be hushed from your phone, and it will even message your phone in case you're not home.

Equipment Pictured Sold Separately.

Detailed Description
(Manufacturer # S3003LWES )
Get alerts on your phone.
Nest Protect sends a message when there's a problem or the batteries run low.
Every second counts.
The Split--Spectrum Sensor looks for both fast and slow-burning fires.
Hush from the Nest app.
Just burned the popcorn? Silence the false alarm with your phone, not your dish towel.
Sees the CO you can't.
Carbon monoxide is an invisible, poisonous gas. Nest Protect tells you where it's hiding. When used with the Nest Thermostat (sold separately), the Nest Protect sends a command to the thermostat to shut down your furnace if CO is detected.
Tells you what and where.
Nest Protect speaks up if there's smoke or CO and tells you where it is, so you know what to do.
A light in the dark.
Usually Nest Protect has its light turned off, but when you walk underneath it, Pathlight can light your way.
10-year life span.
Nest Protect's long-lasting sensors keep you safe and sound for up to a decade.
Sleep safe and sound.
Nightly Promise is a quick green glow when you turn out the lights that says everything's working well.
  • 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
LanguagesEnglish, Spanish
Sensors Split-Spectrum Sensor, 450nm and 880nm wavelength
10 year electrochemical carbon monoxide sensor
Heat sensor, ± 1.8°F (± 1°C)
Humidity sensor, ± 3%RH
Occupancy sensor, 120° field of view to 20 feet
Ambient light sensor, 1-100k Lux Dynamic Range
Omnidirectional microphone, 70dBA SNR
Speaker, horn, and light ring 2 Watt Speaker
Horn: 85dB SPL at 10 feet (3 m)
RGB color ring with 6 LEDs
Connectivity requirements Wi-Fi connection
Phone or tablet with iOS 8 or later, or Android 4 or later
Free Nest Account
Wireless 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:

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"
Operating Temperature The alarm should not be installed in locations where the normal ambient temperature is below 40°F (4°C) or exceeds 100°F (38°C). Humidity range: 20%RH to 80%RH (non condensing).
Warranty 2-year limited warranty. For support, visit Our support team is also available by phone 24/7.


Six long-life AA Energizer® Ultimate Lithium batteries


120V Connector
Three long-life AA Energizer® Ultimate Lithium backup batteries
Size and Weight


Height: 5.3 inches (13.5 cm)
Width: 5.3 inches (13.5 cm)
Depth: 1.5 inches (3.85 cm)
Mass: 13.9 ounces (379 g)


Height: 5.3 inches (13.5 cm)
Width: 5.3 inches (13.5 cm)
Depth: 1.5 inches (3.85 cm)
Mass: 13.2 ounces (375 g)
What's in the Box


  • 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
Brand Nest
Condition New
UPC 854448003730
User Information
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