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Nest Protect Smoke And CO Alarm 2ND Generation Wired Version - White (S3003LWEF)
Model #: S3003LWEF|Manufacturer#: 5464979|UPC #: 854448003754

Know more, worry less. Nest Protect takes only minutes to install and you can set it up from your phone. Plus the Nest Protect will speaks up if there’s smoke or CO and tells you where it is, so you know what to do.


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Final Clearance. Some items may be open box or demo units. All have full manufacturer’s warranty.
Inventory availability locations:
  • Langley, BC. 20670 Langley Bypass. 604-514-1277(2 instock)
  • North Vancouver, BC. #15 - 935 Marine Drive. 604-988-8544(1 instock)
  • Winnipeg, MB. 1130 St. James St. 204-775-7082(1 instock)

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.

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.

Easy installation
Nest Protect takes only minutes to install and you can set it up from your phone

Nest Protect Features:

• 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
• 2-year limited warranty. For support, visit

Nest Protect Sensors:

• 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

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 Connection:

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

Certification (Complies with 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 40ºF (4ºC) or exceeds 100ºF (38ºC).
Humidity range: 20%RH to 80%RH (non condensing).
• Nest Protect
• Three long-life backup batteries (Energizer® Ultimate Lithium "L91" AA)
• 120V AC connector
• Three wire nuts
• Backplate
• Four screws
• User's Guide
• Welcome Guide
  • Product Parts Warranty: 2 Year Limited
  • Product Labour Warranty: 2 Year Limited


Width:5.30 inches
Height:5.30 inches
Depth:1.50 inches
Weight:0.82 pounds