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Nest Protect Smoke & Carbon Monoxide Alarm

Discontinued Product

This product has been discontinued.

Product Overview

Nest Protect smoke and carbon monoxide alarms rapidly detect fires as well as poisonous carbon monoxide (short CO) gas leaking from fuel burning appliances, sounding a loud warning on all connected Nest alarms as well as notifying you on your smartphone. They deploy optical, heat and humidity sensors to differentiate between smoke and steam, which reduces false alarms. The alarms connect to each other and your smart phone through Wi-Fi to give you the earliest possible warning. Up to 18 Nest products can be connected to your free Nest account. When smoke or CO is detected, the Nest Protect will issue an early warning 'heads-up' voice alert and the LED ring will glow yellow. Up to 18 Nest products can be connected to your free Nest account, allowing them to communicate throughout your home. If dangerous levels are detected, the LED ring will glow red, an alarm will sound and the voice alert will tell you what the danger is and which room it was detected in.

  • Combined smoke and carbon monoxide alarm
  • Fast detection of slow smouldering fires
  • Interlinks with up to 18 Nest products
  • Smart Wi-Fi alarm technology with smartphone app control
  • Available in 2 versions:
    • 9V battery powered smoke and CO detector
    • 230V mains powered smoke and CO detector with back-up battery
  • Early warning 'heads-up' voice alerts
  • 10 year product life
  • Safelincs Exclusive 5 Year Warranty
  • Automatic power check at lights out (no more midnight chirps)
  • Phone alerts via free Nest app
  • Pathlight feature - motion sensor controlled light guides your way at night
  • Works with Nest Thermostat and Nest Cam as part of a connected home
  • Emergency shut-off for connected boilers in the event of an emergency (Nest Thermostat required)
  • Automatic self-tests including sensor and sound check
  • Compliant with the following standards:
    • BS EN 50291-1:2010+A1:2012 - Electrical apparatus for the detection of carbon monoxide in domestic premises
    • BS EN 50271:2010 - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen
    • BS EN 14604:2005 - Smoke alarm devices
    • BS EN 50292:2002 - Electrical apparatus for the detection of carbon monoxide in domestic premises. Guide on the selection, installation, use and maintenance
    • UL 2034 - Single and Multi Station Carbon Monoxide Alarms
    • UL 217 - Single and Multi Station Smoke Alarms
  • Suitable for installations complying to BS 5839-6: 2019 Grade F2 (battery) or Grade D2 (mains)
  • CE marked and UL certified
  • Supplied with fixings; 2 x screws

Please Note: The Nest Protect contains an optical sensor which is unsuitable for installation in kitchens due to the possibility of false alarms caused by cooking fumes.

Technical Data
Product Code

Mains Wired:  NESTPRO230

Longlife Battery:  NESTPRO9V

Brand Nest
Operating Temperature

4 °C to 38 °C

Power Type

Battery: 6 x 1.5V AA Batteries

Wired: 230V

Relative Humidity

20% RH to 80% RH (non-condensing)

Weight 0.38kg
Product Datasheets

Customer Reviews

2 customers have given this product an overall rating of 5 out of 5

Reviews by real customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 5 / 5 Stars

Reviewed by:

Everything it said it was. Great. Initially had a problem with Wi-Fi connection.

Published on: 18th April 2017

Rating: 5 / 5 Stars

Reviewed by:

Really pleased with these alarms. I bought 2 to put in my hallway and landing and haven't been disapointed! The night light which lights the way of you get up at night is brilliant. And being able to silence the alarm from the app is genius.

Published on: 18th January 2016

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Direct Telephone 01507 464181


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