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Nest Protect Smoke + CO Alarm Wired Model (S3003LWGB)

Order Code: S3003LWGB
Unit: EACH

(Ex. VAT)

Nest Protect Smoke + CO Alarm Wired Model (The smoke alarm that thinks, speaks and alerts your phone.) It’s time to expect more from your smoke alarm. The new 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 you can silence from your phone without any extra hardware required. And just like the original Nest Protect, it tells you what’s wrong and can even alert your phone. Meet the all-new Nest Protect. The smoke alarm other alarms look up to. Click here for Battery model


  • Power: 230V Connector, Three long-life AA Energize Ultimate Lithium backup batteries
  • Voice Alarms with custom Location
  • Split Spectrum Sensor
  • Detects Carbon Monoxide
  • Up to 10-Year Product Lifetime
  • Heads-Up Alerts
  • Sound Check
  • Nightly Promise
  • Pathlight
  • Steam Check
  • Self Test
  • Wireless Interconnect
  • Emergency Shut-Off with Nest Learning Thermostat
  • Emergency Clip Record with Nest Cam
  • Home Report
  • Nest App
  • Phone Alerts include (Smoke, Carbon Monoxide, Low Battery, Sensor Failure)
  • App Silence
  • Safety Check-up
  • Safety History
  • What to do

Technical Specification

  • Colour: White
  • Split Spectrum Sensor, 450nm and 880nm wavelength
  • 10-year electrochemical carbon monoxide sensor
  • Heat Sensor, +-1degC(+-1.8degF)
  • Humidity Sensor, +-3%RH
  • Occupancy Sensor, 120deg field of view to 6 metres (20feet)
  • Ambient Light Sensor, 1-100 Lux
  • Dynamic Range
  • Speaker: 2 Watt Speaker
  • Siren: 85db at 3 metres
  • RGB Colour Ring with 6 LEDs
  • Height: 13.5cm
  • Width: 13.5cm
  • Depth: 3.90cm
  • Mass: 374g
  • Requires WiFi connection
  • Wireless: WiFi 802.11b/g/n/ 2.4GHz
  • Wireless Interconnect: 802.15.4 @ 2.4GHz
  • Bluetooth Low Energy (BLE)
  • The 2nd Gen Nest Protect has been tested by UL to comply with European, US and Canadian safety standards
  • Nest Protect complies with the following Smoke and Carbon Monoxide alarm standards
    • EN-14604 – Smoke alarm devices.
    • EN-50291 – Electrical apparatus for the detection of carbon monoxide in domestic premises.
      EN-50271:2010 – Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen.
      EN-50292 – Electrical apparatus for the detection of carbon monoxide in domestic premises.
  • The alarm should not be installed in locations where normal ambient temperature is below 4degC or exceeds 38degC, Humidity Range: 20%RH to 80%RH (non condensing)
  • 2 Year Limited Warranty - For support, visit