Nest S3000BWGB 2nd Generation Smoke & Carbon Monoxide Alarm Product Code: 2501H

Smart smoke and carbon monoxide alarm. Industrial-grade, split-spectrum sensor detects fast and slow-burning fires. Can be controlled from, and will send alerts to, a smartphone. Sensor lasts up to 10 years.


  • 85dBA Alarm
  • Battery-Powered
  • 2 Year Manufacturer's Guarantee (T&Cs Apply)
  • Automatic Test Function
  • Override Function
  • Split-Spectrum Sensor
  • Smartphone Control


9V. BS EN 14604, BS EN 50291-1.
Additional Information
Technical Specification
  • Power Source : Battery-Powered
  • Brand : Nest
  • Product Type : 2nd Generation Smoke & Carbon Monoxide Alarm
  • Alarm Product Type : Smoke & CO
  • Model Name : Protect
  • Fixings Supplied : Fixings & Fittings Supplied
  • Current Type : DC
  • Total Product Weight : 0.38 kg
  • Model No : S3000BWGB
  • Battery Duration : Replacement Battery (Lithium)
  • Wireless/Wired : Wireless
  • Alarm Sensor Type : Photoelectric
  • Battery Type : AA
  • Colour : White
  • Pack Size : 1
  • Power Voltage Supply : 9 V
  • Manufacturer Guarantee : 2 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Nest Protect, backplate, 6 x long life batteries and fixings.
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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€127.95 Incl. 20% VAT

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Nest S3000BWGB 2nd Generation Smoke & Carbon Monoxide Alarm is rated 5.0 out of 5 by 6.
Rated 5 out of 5 by from Away from home feature! Forget about conventional cheap alarms, this one leaves them all behind. Took 10 minutes to set up and fit. The features give you confidence in the alarm especially the automatic 'away from home' which is the main reason I bought it, what use is it to have a standard alarm going off and your not even at home to save the place or in my case my dog. At least you are alerted by a problem and either head home or send someone round to see to the problem. Hopefully it's never used but I can rely on it if the worst was to happen
Date published: 2017-06-25
Rated 5 out of 5 by from Amazing bit of kit The Nest product family are superbly engineered, I have used the Nest cam product at work, easy set-up and easy maintenance, the Nest Protect is no different, feels reassuringly expensive, I had it set up within half an hour including a new online account, this is the battery only version and I like the addition of the nightlight that turns on when it detects movement in the dark, I will gradually replace all of the other smoke/Carbon Monoxide alarms in the house in favour of the Nest Protect
Date published: 2017-01-05
Rated 5 out of 5 by from Reliable and trustworthy Great bit of kit, you feel reliable that it working correctly. Also it's great at it's both smoke and Carbon Monoxide checker.
Date published: 2016-12-03
Rated 5 out of 5 by from Simple to fit, easy to use This battery-powered "smart" smoke alarm and CO detector is simplicity itself to install and configure. It look all of 5 minutes, and that included fixing it to the ceiling and configuring the wifi. I also have the Nest Learning Thermostat, and this uses the same app, so that the movement detector on the alarm becomes an additional sensor for the thermostat, enabling it to work out even more accurately when you are in or out of the house, to help save you energy on your gas bill. I've used this to replace an existing smoke alarm on our landing, and I plan to get a couple more for downstairs. The built-in LED lighting provides a useful "nightlight" feature for softly illuminating the landing when it senses someone making a trip to the bathroom during the night. I'm very happy with this product, and would recommend to everyone, particularly if they already have (or are contemplating) a Nest Learning Thermostat.
Date published: 2016-01-12
Rated 5 out of 5 by from A thoroughly excellent product I bought this when I was planning to get a Nest Smart Thermostat, and although I installed it (note: very quick and easy) prior to actually getting the thermostat it still showed it was a lot more than just a simple smoke & carbon monoxide detector. For instance, it independently self tests it's own systems and reports the results to your Nest account which is visible via a smartphone app or PC, and if configured it will also gently glow at night if it detects movement in order to light your way in the darkness. Any/all alarm triggers are also sent directly to your smartphone. However, now I have also had a Nest Smart Thermostat installed the detector's sensors have become part of the 'system' sensor array which make the whole thing even more accurate - very clever indeed. As for false alarms - I haven't had one. I am so pleased with my decision to buy the Nest Smoke/Carbon Monoxide detector and to the link it to the Nest Smart Thermostat.
Date published: 2015-11-21
Rated 5 out of 5 by from Absolutly love it! I've been wanting to get one of these since the first gen came out. I've had mine for a few months and I can't fault it. It connects perfectly to my wireless, only took a few minutes to setup by following the instructions via the app. Very easy to use, and it speaks out to you very clearly. As apposed to the negative review on the wired system. I've yet to have a false alarm, the instructions recommends not fitting it in the kitchen. I've got mine setup so that it notifies me on my Pebble Time watch as well as my bedroom Philips Hue light flashes when the alarm goes off. Very effective indeed. I'm very tempting in purchasing another one now for upstairs.
Date published: 2015-11-09
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